GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project
                    National Weather Service Historical Great Lakes Ice Reports
                                           Winter 1970
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 Site No. Year Mo Da   T1   T2   C1  T1C1 T2C1  C2  T1C2 T2C2  C3 T1C3 T2C3  IMAGE   Supplemental Information
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     13   1970  3 17   23   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
     13   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
     13   1970  4 21   -1   -1   OW   -1   -1        -1   -1       -1   -1  517.TIF                                  
     14   1970  4  7   -1   -1   IP   -1   -1        -1   -1       -1   -1  515.TIF                                  
     19   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF  CHANNEL: S OF ISLAND TO DULUTH  
     20   1970  4 14   -1   -1   IP   -1   -1        -1   -1       -1   -1  516.TIF  (70% ICE COVER)                 
     20   1970  4 21   -1   -1   IP   -1   -1        -1   -1       -1   -1  517.TIF                                  
     22   1970  2 24   -1   -1   IP   -1   -1        -1   -1       -1   -1  519.TIF  W HALF (50% ICE COVER)          
     22   1970  2 24   -1   -1   LI   -1   -1        -1   -1       -1   -1  519.TIF  E HALF                          
     22   1970  2 24   -1   -1   WI   -1   -1        -1   -1       -1   -1  519.TIF  S SHORE                         
     22   1970  3 10   -1   -1   WI   -1   -1        -1   -1       -1   -1  511.TIF  S SHORE                         
     22   1970  3 17   -1   -1   SO   -1   -1        -1   -1       -1   -1  512.TIF  W & S SHORES                    
     22   1970  3 17   -1   -1   SO   -1   -1   WI   -1   -1       -1   -1  512.TIF  S SHORES                        
     22   1970  3 24   -1   -1   IP   -1   -1        -1   -1       -1   -1  513.TIF  S HALF                          
     22   1970  4  7   -1   -1   IP   -1   -1        -1   -1       -1   -1  515.TIF  S SHORE                         
     22   1970  4 14   -1   -1   IP   -1   -1        -1   -1       -1   -1  516.TIF  S HALF                          
     23   1970  3 24    3   -1        -1   -1        -1   -1       -1   -1  513.TIF  (50% ICE COVER)                 
     23   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
     23   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
     23   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
     27   1970  3 24   -1   -1   FD   -1   -1   SO   -1   -1       -1   -1  513.TIF  PENINSULA: TO APOSTLE ISLANDS   
     33   1970  3 17    2   -1        -1   -1        -1   -1       -1   -1  512.TIF  (50% ICE COVER)                 
     33   1970  3 24    2   -1        -1   -1        -1   -1       -1   -1  513.TIF  (50% ICE COVER)                 
     33   1970  3 31    1   -1        -1   -1        -1   -1       -1   -1  514.TIF  (10% ICE COVER)                 
     33   1970  4  7    1   -1        -1   -1        -1   -1       -1   -1  515.TIF  (10% ICE COVER)                 
     33   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF  HARBOR                          
     35   1970  3 31   -1   -1   FS   -1   -1   WI   -1   -1       -1   -1  514.TIF  TO STANNARD ROCK                
     45   1970  3 17   13   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
     45   1970  3 24   13   -1        -1   -1        -1   -1       -1   -1  513.TIF                                  
     45   1970  3 31   13   -1        -1   -1        -1   -1       -1   -1  514.TIF                                  
     45   1970  4  7   10   -1        -1   -1        -1   -1       -1   -1  515.TIF  (90% ICE COVER)                 
     45   1970  4 14    5   -1        -1   -1        -1   -1       -1   -1  516.TIF  (60% ICE COVER)                 
     52   1970  3  3   18   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
     52   1970  3 17   17   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
     52   1970  3 24   16   -1        -1   -1        -1   -1       -1   -1  513.TIF                                  
     52   1970  3 31   10   -1        -1   -1        -1   -1       -1   -1  514.TIF                                  
     52   1970  4  7    7   -1        -1   -1        -1   -1       -1   -1  515.TIF  (70% ICE COVER)                 
     52   1970  4 14    3   -1        -1   -1        -1   -1       -1   -1  516.TIF  (50% ICE COVER)                 
     54   1970  3 10   22   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
     54   1970  3 17   17   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
     54   1970  3 17   22   -1        -1   -1        -1   -1       -1   -1  512.TIF  GREAT NORTHERN ORE DOCK         
     67   1970  3 10   14   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
     67   1970  3 17   18   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
     67   1970  3 24   18   -1        -1   -1        -1   -1       -1   -1  513.TIF                                  
     67   1970  3 31   18   -1        -1   -1        -1   -1       -1   -1  514.TIF                                  
     67   1970  4 14   16   -1        -1   -1        -1   -1       -1   -1  516.TIF                                  
     71   1970  3 24   -1   -1   FD   -1   -1   SO   -1   -1       -1   -1  513.TIF                                  
     71   1970  3 31   -1   -1   WI   -1   -1        -1   -1       -1   -1  514.TIF  MOUTH                           
     71   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF  CHANNEL                         
     71   1970  4 21   -1   -1   IJ   -1   -1        -1   -1       -1   -1  517.TIF  W SHORE                         
     75   1970  3  3   18   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
     75   1970  3 10   18   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
     75   1970  3 17   18   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
     76   1970  3  3   10   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
     76   1970  3 10    8   -1        -1   -1        -1   -1       -1   -1  511.TIF  (80% ICE COVER)                 
     76   1970  3 17    5   -1        -1   -1        -1   -1       -1   -1  512.TIF  (80% ICE COVER)                 
     76   1970  3 24    8   -1        -1   -1        -1   -1       -1   -1  513.TIF                                  
     76   1970  3 31    5   -1        -1   -1        -1   -1       -1   -1  514.TIF                                  
     76   1970  4  7    3   -1        -1   -1        -1   -1       -1   -1  515.TIF  (50% ICE COVER)                 
     76   1970  4 14    2   -1        -1   -1        -1   -1       -1   -1  516.TIF  (20% ICE COVER)                 
     77   1970  4 21   -1   -1   HF   -1   -1        -1   -1       -1   -1  517.TIF  TO THE N & NW                   
     78   1970  3 17    7   -1        -1   -1        -1   -1       -1   -1  512.TIF  GRAND ISLAND HARBOR             
     80   1970  3  3   14   -1        -1   -1        -1   -1       -1   -1  518.TIF  (90% ICE COVER)                 
     80   1970  3 10   15   -1        -1   -1        -1   -1       -1   -1  511.TIF  (90% ICE COVER)                 
     80   1970  3 17   15   -1        -1   -1        -1   -1       -1   -1  512.TIF  (90% ICE COVER)                 
     80   1970  3 24   14   -1        -1   -1        -1   -1       -1   -1  513.TIF  (80% ICE COVER)                 
     80   1970  3 31   18   -1        -1   -1        -1   -1       -1   -1  514.TIF  (80% ICE COVER)                 
     80   1970  4  7   18   -1        -1   -1        -1   -1       -1   -1  515.TIF  (70% ICE COVER)                 
     80   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
     84   1970  3 10    9   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
     84   1970  3 24    6   -1        -1   -1        -1   -1       -1   -1  513.TIF                                  
     84   1970  3 31    7   -1        -1   -1        -1   -1       -1   -1  514.TIF                                  
     84   1970  4 14   20   -1        -1   -1        -1   -1       -1   -1  516.TIF                                  
    105   1970  2 24   14   21   SM   -1   -1   SW   -1   -1       -1   -1  519.TIF                                  
    105   1970  3  3   14   23   SM   -1   -1        -1   -1       -1   -1  518.TIF                                  
    105   1970  3 10   14   26   SM   -1   -1        -1   -1       -1   -1  511.TIF                                  
    105   1970  3 17   15   26   SM   -1   -1        -1   -1       -1   -1  512.TIF                                  
    105   1970  3 24    5   29   SW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    105   1970  3 25   -1   -1        -1   -1        -1   -1       -1   -1  518.TIF  ANTICIPATED ICEBREAKER OPENING  
    105   1970  3 31    5   27   FS   -1   -1   CL   -1   -1   SW  -1   -1  514.TIF                                  
    105   1970  4  7   -1   -1   DI   -1   -1   IJ   -1   -1   SW  -1   -1  515.TIF  CHANNEL                         
    105   1970  4  8   -1   -1        -1   -1        -1   -1       -1   -1  518.TIF  ANTICIPATED NATURAL OPENING     
    105   1970  4 14   -1   -1   BI   -1   -1   RT   -1   -1       -1   -1  516.TIF                                  
    105   1970  4 14   -1   -1   LI   -1   -1        -1   -1       -1   -1  516.TIF  CHANNEL                         
    105   1970  4 21   -1   -1   PN   -1   -1   BI   -1   -1   SW  -1   -1  517.TIF                                  
    107   1970  3 31   -1   -1   WI   -1   -1        -1   -1       -1   -1  514.TIF                                  
    122   1970  4 21   22   -1        -1   -1        -1   -1       -1   -1  517.TIF                                  
    123   1970  4 14   23   -1        -1   -1        -1   -1       -1   -1  516.TIF                                  
    126   1970  3 10   16   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    127   1970  2 24   -1   -1   IR   -1   -1        -1   -1       -1   -1  519.TIF  TO ST. IGNACE                   
    127   1970  4 14   -1   -1   DI   -1   -1   BK   -1   -1       -1   -1  516.TIF  TO BRIDGE (50% ICE COVER)       
    129   1970  3  3   15   20   FS   -1   -1   IR   -1   -1       -1   -1  518.TIF  TO LANSING SHOAL                
    130   1970  2 24   -1   -1   IR   -1   -1        -1   -1       -1   -1  519.TIF  TO MACKINAC ISLAND              
    130   1970  3 24   15   16   SO   -1   -1        -1   -1       -1   -1  513.TIF  TO LANSING SHOAL                
    135   1970  3 17   24   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    135   1970  4 14   -1   -1   IP   -1   -1        -1   -1       -1   -1  516.TIF                                  
    135   1970  4 21   -1   -1   OW   -1   -1        -1   -1       -1   -1  517.TIF                                  
    136   1970  3 10   15   20   FS   -1   -1        -1   -1       -1   -1  511.TIF  TO LANSING SHOAL                
    136   1970  3 17   16   23   FS   -1   -1   WI   -1   -1       -1   -1  512.TIF  TO LANSING SHOAL                
    137   1970  3 10   12   -1        -1   -1        -1   -1       -1   -1  511.TIF  (50% ICE COVER)                 
    137   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    137   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    137   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    137   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
    138   1970  2 24   -1   -1   IR   -1   -1        -1   -1       -1   -1  519.TIF  TO BOIS BLANC ISLAND            
    138   1970  3 17   -1   -1   SW   -1   -1        -1   -1       -1   -1  512.TIF                                  
    139   1970  2 24   -1   -1   SO   -1   -1        -1   -1       -1   -1  519.TIF  N PORTIONS                      
    139   1970  3  3   -1   -1   SO   -1   -1        -1   -1       -1   -1  518.TIF  N CHANNEL                       
    139   1970  3 10   -1   -1   SO   -1   -1        -1   -1       -1   -1  511.TIF  N CHANNEL                       
    139   1970  3 10   -1   -1   DI   -1   -1        -1   -1       -1   -1  511.TIF                                  
    139   1970  3 17   -1   -1   SO   -1   -1        -1   -1       -1   -1  512.TIF  N CHANNEL                       
    139   1970  3 17   -1   -1   DI   -1   -1        -1   -1       -1   -1  512.TIF                                  
    139   1970  4 14   -1   -1   SO   -1   -1        -1   -1       -1   -1  516.TIF  N CHANNEL                       
    139   1970  4 21   -1   -1   FS   -1   -1   RT   -1   -1       -1   -1  517.TIF  N CHANNEL                       
    139   1970  4 21   -1   -1   DI   -1   -1        -1   -1       -1   -1  517.TIF                                  
    141   1970  3  3   15   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    141   1970  3 10   13   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    141   1970  3 17   13   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    143   1970  4 21   -1   -1   OW   -1   -1        -1   -1       -1   -1  517.TIF                                  
    153   1970  3  3   12   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    153   1970  3 10   11   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    153   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    153   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    153   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    153   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
    164   1970  3 17   13   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    171   1970  3 17   13   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    171   1970  4 14    8   -1        -1   -1        -1   -1       -1   -1  516.TIF                                  
    171   1970  4 21   -1   -1   OW   -1   -1        -1   -1       -1   -1  517.TIF                                  
    177   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
    179   1970  2 24   -1   -1   LF   -1   -1   DI   -1   -1       -1   -1  519.TIF                                  
    179   1970  3  3   -1   -1   IP   -1   -1        -1   -1       -1   -1  518.TIF  E SHORE                         
    179   1970  3  3   -1   -1   LI   -1   -1        -1   -1       -1   -1  518.TIF  MAIN SHIPPING CHANNEL           
    179   1970  3 10   -1   -1   LI   -1   -1        -1   -1       -1   -1  511.TIF  MAIN BODY                       
    179   1970  3 12   -1   -1        -1   -1        -1   -1       -1   -1  518.TIF  ANTICIPATED ICEBREAKER OPENING  
    179   1970  3 17   -1   -1   SO   -1   -1   RF   -1   -1       -1   -1  512.TIF  S PORTIONS                      
    179   1970  3 24   -1   -1   NS   -1   -1        -1   -1       -1   -1  513.TIF                                  
    179   1970  3 28   -1   -1        -1   -1        -1   -1       -1   -1  518.TIF  ANTICIPATED NATURAL OPENING     
    179   1970  3 31   -1   -1   IJ   -1   -1   WI   -1   -1       -1   -1  514.TIF  S END                           
    179   1970  4  7   -1   -1   IJ   -1   -1   SW   -1   -1       -1   -1  515.TIF  S END                           
    179   1970  4 14   -1   -1   HF   -1   -1   DI   -1   -1   BK  -1   -1  516.TIF  SE PORTION                      
    179   1970  4 21   -1   -1   DI   -1   -1   RT   -1   -1       -1   -1  517.TIF  S END                           
    185   1970  3 10   20   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    185   1970  3 17   22   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    185   1970  3 24   18   -1        -1   -1        -1   -1       -1   -1  513.TIF                                  
    185   1970  3 31   15   -1        -1   -1        -1   -1       -1   -1  514.TIF  (50% ICE COVER)                 
    185   1970  4  7   15   -1        -1   -1        -1   -1       -1   -1  515.TIF  (50% ICE COVER)                 
    185   1970  4 14    8   -1        -1   -1        -1   -1       -1   -1  516.TIF  (30% ICE COVER)                 
    199   1970  3  3    3   -1        -1   -1        -1   -1       -1   -1  518.TIF  (90% ICE COVER)                 
    199   1970  3 10    4   -1        -1   -1        -1   -1       -1   -1  511.TIF  (90% ICE COVER)                 
    199   1970  3 17   12   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    199   1970  3 24    9   -1        -1   -1        -1   -1       -1   -1  513.TIF  (80% ICE COVER)                 
    199   1970  3 31    6   -1        -1   -1        -1   -1       -1   -1  514.TIF  (90% ICE COVER)                 
    199   1970  4  7    6   -1        -1   -1        -1   -1       -1   -1  515.TIF  (90% ICE COVER)                 
    199   1970  4 14    3   -1        -1   -1        -1   -1       -1   -1  516.TIF  (30% ICE COVER)                 
    201   1970  4 21   -1   -1   OW   -1   -1        -1   -1       -1   -1  517.TIF                                  
    203   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    203   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    205   1970  2 24   -1   -1   SO   -1   -1        -1   -1       -1   -1  519.TIF  UPPER BAY                       
    205   1970  3  3   -1   -1   SO   -1   -1        -1   -1       -1   -1  518.TIF  UPPER BAY                       
    205   1970  3 10   -1   -1   SO   -1   -1        -1   -1       -1   -1  511.TIF  UPPER BAY                       
    205   1970  3 17   -1   -1   SO   -1   -1        -1   -1       -1   -1  512.TIF  UPPER BAY                       
    205   1970  3 31   -1   -1   LI   -1   -1        -1   -1       -1   -1  514.TIF  EXCEPT E SHORE                  
    205   1970  3 31   -1   -1   RT   -1   -1        -1   -1       -1   -1  514.TIF  E SHORE                         
    205   1970  4  7   -1   -1   DI   -1   -1   IJ   -1   -1       -1   -1  515.TIF                                  
    206   1970  3  3    8   -1        -1   -1        -1   -1       -1   -1  518.TIF  (80% ICE COVER)                 
    206   1970  3 10   -1   -1   IP   -1   -1        -1   -1       -1   -1  511.TIF  ALONG SHORE                     
    211   1970  3  3    6   -1        -1   -1        -1   -1       -1   -1  518.TIF  (90% ICE COVER)                 
    211   1970  3 10    3   -1        -1   -1        -1   -1       -1   -1  511.TIF  (20% ICE COVER)                 
    211   1970  3 24    4   -1        -1   -1        -1   -1       -1   -1  513.TIF  (90% ICE COVER)                 
    211   1970  3 31    4   -1        -1   -1        -1   -1       -1   -1  514.TIF  (80% ICE COVER)                 
    211   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    214   1970  3 31   -1   -1   WI   -1   -1        -1   -1       -1   -1  514.TIF                                  
    214   1970  4 14   -1   -1   HF   -1   -1   DI   -1   -1   BK  -1   -1  516.TIF                                  
    215   1970  3  3   12   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    215   1970  3 10   12   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    215   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
    228   1970  2 24   16   18        -1   -1        -1   -1       -1   -1  519.TIF                                  
    228   1970  3 10   15   20   FS   -1   -1   IR   -1   -1       -1   -1  511.TIF                                  
    228   1970  3 17   16   23   FS   -1   -1   IR   -1   -1       -1   -1  512.TIF                                  
    228   1970  3 18   -1   -1        -1   -1        -1   -1       -1   -1  518.TIF  ANTICIPATED ICEBREAKER OPENING  
    228   1970  3 24   15   16   SO   -1   -1   IR   -1   -1       -1   -1  513.TIF                                  
    228   1970  3 24   -1   -1   DI   -1   -1        -1   -1       -1   -1  513.TIF  BOTH APPROACHES                 
    228   1970  3 31   14   -1   FS   -1   -1   FD   -1   -1   SI  -1   -1  514.TIF                                  
    228   1970  4  6   -1   -1        -1   -1        -1   -1       -1   -1  518.TIF  ANTICIPATED NATURAL OPENING     
    228   1970  4  7   -1   -1   DI   -1   -1        -1   -1       -1   -1  515.TIF  CHANNEL                         
    228   1970  4  7   -1   -1   SO   -1   -1        -1   -1       -1   -1  515.TIF                                  
    228   1970  4 14   -1   -1   SO   -1   -1        -1   -1       -1   -1  516.TIF  FOR 7Mi IN SOUTH CHANNEL        
    228   1970  4 14   -1   -1   FD   -1   -1        -1   -1       -1   -1  516.TIF  W OF BRIDGE: TO WHITE SHOAL     
    228   1970  4 21   -1   -1   LI   -1   -1        -1   -1       -1   -1  517.TIF                                  
    232   1970  3  3   -1   -1   SW   -1   -1        -1   -1       -1   -1  518.TIF  S OF REEF                       
    232   1970  3 31   -1   -1   DI   -1   -1   SW   -1   -1       -1   -1  514.TIF  TO PYRAMID POINT                
    238   1970  3  3   18   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    238   1970  3 10   19   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    238   1970  3 24   15   -1        -1   -1        -1   -1       -1   -1  513.TIF                                  
    238   1970  3 31   15   -1        -1   -1        -1   -1       -1   -1  514.TIF  (90% ICE COVER)                 
    238   1970  4  7   12   -1        -1   -1        -1   -1       -1   -1  515.TIF  (90% ICE COVER)                 
    238   1970  4 14   11   -1        -1   -1        -1   -1       -1   -1  516.TIF  (70% ICE COVER)                 
    240   1970  3 10   -1   -1   SW   -1   -1        -1   -1       -1   -1  511.TIF  SOUTHWARD                       
    251   1970  3 31   -1   -1   DI   -1   -1        -1   -1       -1   -1  514.TIF  PASSAGE                         
    254   1970  3 24   -1   -1   WI   -1   -1        -1   -1       -1   -1  513.TIF                                  
    261   1970  3 10    4   -1        -1   -1        -1   -1       -1   -1  511.TIF  (80% ICE COVER)                 
    261   1970  3 24    8   -1        -1   -1        -1   -1       -1   -1  513.TIF  (80% ICE COVER)                 
    261   1970  3 31   12   -1        -1   -1        -1   -1       -1   -1  514.TIF                                  
    261   1970  4  7    8   -1        -1   -1        -1   -1       -1   -1  515.TIF  (80% ICE COVER)                 
    261   1970  4 14    6   -1        -1   -1        -1   -1       -1   -1  516.TIF  (10% ICE COVER)                 
    268   1970  3 10    4   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    268   1970  3 31    4   -1        -1   -1        -1   -1       -1   -1  514.TIF                                  
    272   1970  3  3   15   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    272   1970  3 10   13   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    272   1970  3 17   13   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    272   1970  3 24   12   -1        -1   -1        -1   -1       -1   -1  513.TIF                                  
    272   1970  3 31    7   -1        -1   -1        -1   -1       -1   -1  514.TIF  (90% ICE COVER)                 
    272   1970  4  7    7   -1        -1   -1        -1   -1       -1   -1  515.TIF  (90% ICE COVER)                 
    272   1970  4 14    4   -1        -1   -1        -1   -1       -1   -1  516.TIF  (60% ICE COVER)                 
    273   1970  3 10   36   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    273   1970  3 17   36   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    273   1970  3 31    3   -1        -1   -1        -1   -1       -1   -1  514.TIF                                  
    273   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
    284   1970  3 10   13   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    284   1970  3 17   15   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    284   1970  3 31   13   -1        -1   -1        -1   -1       -1   -1  514.TIF                                  
    284   1970  4  7    8   -1        -1   -1        -1   -1       -1   -1  515.TIF  (50% ICE COVER)                 
    284   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
    285   1970  2 24   -1   -1   SO   -1   -1        -1   -1       -1   -1  519.TIF                                  
    290   1970  3  3   10   -1        -1   -1        -1   -1       -1   -1  518.TIF  (70% ICE COVER)                 
    290   1970  3 10    6   -1        -1   -1        -1   -1       -1   -1  511.TIF  (20% ICE COVER)                 
    290   1970  3 17    4   -1        -1   -1        -1   -1       -1   -1  512.TIF  (50% ICE COVER)                 
    290   1970  3 24   -1   -1   IP   -1   -1        -1   -1       -1   -1  513.TIF  (10% ICE COVER)                 
    290   1970  3 31    2   -1        -1   -1        -1   -1       -1   -1  514.TIF  (20% ICE COVER)                 
    290   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    293   1970  2 24   -1   -1   SO   -1   -1        -1   -1       -1   -1  519.TIF                                  
    293   1970  3  3   -1   -1   LI   -1   -1        -1   -1       -1   -1  518.TIF  GREEN BAY ENTRANCE              
    293   1970  3  3   -1   -1   WI   -1   -1   SW   -1   -1       -1   -1  518.TIF                                  
    293   1970  3 10   -1   -1   SW   -1   -1        -1   -1       -1   -1  511.TIF  S PORTIONS                      
    293   1970  3 17   -1   -1   SW   -1   -1        -1   -1       -1   -1  512.TIF  S PORTIONS                      
    293   1970  3 24   15   24   RT   -1   -1   SW   -1   -1       -1   -1  513.TIF                                  
    293   1970  3 31   -1   -1   SO   -1   -1   RT   -1   -1       -1   -1  514.TIF  S PORTIONS                      
    293   1970  4  7   -1   -1   SO   -1   -1        -1   -1       -1   -1  515.TIF  N PORTIONS                      
    293   1970  4 14   -1   -1   RT   -1   -1        -1   -1       -1   -1  516.TIF                                  
    294   1970  3  3   16   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    294   1970  3 10   16   -1        -1   -1        -1   -1       -1   -1  511.TIF  (90% ICE COVER)                 
    294   1970  3 17   16   -1        -1   -1        -1   -1       -1   -1  512.TIF  (60% ICE COVER)                 
    294   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
    295   1970  3  3    3   -1        -1   -1        -1   -1       -1   -1  518.TIF  (50% ICE COVER)                 
    295   1970  3 10    2   -1        -1   -1        -1   -1       -1   -1  511.TIF  (20% ICE COVER)                 
    295   1970  3 24    1   -1        -1   -1        -1   -1       -1   -1  513.TIF  (10% ICE COVER)                 
    295   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    295   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    296   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF  TO MANISTEE: HARBORS SOUTHWARD  
    296   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF  TO MANISTEE: HARBORS SOUTHWARD  
    299   1970  3  3   13   -1        -1   -1        -1   -1       -1   -1  518.TIF  (90% ICE COVER)                 
    299   1970  3 10    3   -1        -1   -1        -1   -1       -1   -1  511.TIF  (20% ICE COVER)                 
    299   1970  3 17    5   -1        -1   -1        -1   -1       -1   -1  512.TIF  (30% ICE COVER)                 
    299   1970  3 24    1   -1        -1   -1        -1   -1       -1   -1  513.TIF  (20% ICE COVER)                 
    299   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    299   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    300   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF                                  
    300   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    302   1970  3  3    4   -1        -1   -1        -1   -1       -1   -1  518.TIF  (90% ICE COVER)                 
    302   1970  3 10    1   -1        -1   -1        -1   -1       -1   -1  511.TIF  (60% ICE COVER)                 
    302   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    304   1970  3 17   -1   -1   PI   -1   -1        -1   -1       -1   -1  512.TIF  S PORTIONS                      
    304   1970  3 17   -1   -1   IP   -1   -1   WI   -1   -1       -1   -1  512.TIF  E SHORE                         
    304   1970  3 24   -1   -1   DI   -1   -1        -1   -1       -1   -1  513.TIF  E OF ISLANDS                    
    304   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF  S HALF                          
    304   1970  4  7   -1   -1   DI   -1   -1        -1   -1       -1   -1  515.TIF  W END OF STRAITS                
    304   1970  4 21   -1   -1   LI   -1   -1        -1   -1       -1   -1  517.TIF                                  
    307   1970  3  3    8   -1        -1   -1        -1   -1       -1   -1  518.TIF  (50% ICE COVER)                 
    307   1970  3 10    5   -1        -1   -1        -1   -1       -1   -1  511.TIF  (20% ICE COVER)                 
    307   1970  3 17   12   -1        -1   -1        -1   -1       -1   -1  512.TIF  (30% ICE COVER)                 
    307   1970  3 24    6   -1        -1   -1        -1   -1       -1   -1  513.TIF  (20% ICE COVER)                 
    311   1970  3  3    5   -1        -1   -1        -1   -1       -1   -1  518.TIF  (30% ICE COVER)                 
    311   1970  3 10    3   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    311   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    313   1970  3  3   16   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    313   1970  3 10   12   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    313   1970  3 17   12   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    320   1970  3  3    7   -1        -1   -1        -1   -1       -1   -1  518.TIF  (90% ICE COVER)                 
    320   1970  3 10    8   -1        -1   -1        -1   -1       -1   -1  511.TIF  (30% ICE COVER)                 
    320   1970  3 17    8   -1        -1   -1        -1   -1       -1   -1  512.TIF  (30% ICE COVER)                 
    320   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    321   1970  2 24   -1   -1   WI   -1   84        -1   -1       -1   -1  519.TIF  TO MICHIGAN CITY: ALONG SHORE   
    322   1970  3 10   -1   -1   WI   -1   -1        -1   -1       -1   -1  511.TIF  TO ST. JOSEPH                   
    323   1970  3  3   18   -1        -1   -1        -1   -1       -1   -1  518.TIF  (90% ICE COVER)                 
    323   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF                                  
    323   1970  3 17   -1   -1   OW   -1   -1        -1   -1       -1   -1  512.TIF                                  
    323   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    325   1970  3  3    1   -1        -1   -1        -1   -1       -1   -1  518.TIF  (80% ICE COVER)                 
    325   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF                                  
    325   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    327   1970  3  3   15   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    327   1970  3 10   10   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    327   1970  3 17   10   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    327   1970  3 24    4   -1        -1   -1        -1   -1       -1   -1  513.TIF  (30% ICE COVER)                 
    332   1970  3  3    1   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    332   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF                                  
    332   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    334   1970  3 17   10   -1        -1   -1        -1   -1       -1   -1  512.TIF  (70% ICE COVER)                 
    336   1970  3  3    2   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    336   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF                                  
    336   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    337   1970  3  3   20   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    337   1970  3 10    3   -1        -1   -1        -1   -1       -1   -1  511.TIF  (60% ICE COVER)                 
    337   1970  3 17   12   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    337   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    339   1970  3  3   -1   -1   OW   -1   -1        -1   -1       -1   -1  518.TIF                                  
    341   1970  3  3   -1   -1   OW   -1   -1        -1   -1       -1   -1  518.TIF                                  
    341   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    342   1970  3 17   18   -1        -1   -1        -1   -1       -1   -1  512.TIF  BENTON HARBOR (90% ICE COVER)   
    343   1970  3  3    5   -1        -1   -1        -1   -1       -1   -1  518.TIF  (90% ICE COVER)                 
    343   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF                                  
    343   1970  3 17    6   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    343   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    344   1970  3  3   -1   -1   OW   -1   -1        -1   -1       -1   -1  518.TIF                                  
    344   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    346   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    348   1970  3  3    6   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    348   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF                                  
    348   1970  3 17   24   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    348   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    349   1970  3 17   10   -1        -1   -1        -1   -1       -1   -1  512.TIF  (20% ICE COVER)                 
    349   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    350   1970  3 17   18   -1        -1   -1        -1   -1       -1   -1  512.TIF  GARY HARBOR (90% ICE COVER)     
    353   1970  2 24   -1   -1   HF   -1   -1   IJ   -1   -1   RF  -1   -1  519.TIF  LOWER RIVER                     
    353   1970  3 10   -1   -1   IJ   -1   -1        -1   -1       -1   -1  511.TIF  LOWER RIVER                     
    353   1970  3 12   -1   -1        -1   -1        -1   -1       -1   -1  518.TIF  ANTICIPATED ICEBREAKER OPENING  
    353   1970  3 17   -1   -1   IP   -1   -1        -1   -1       -1   -1  512.TIF                                  
    353   1970  3 24   -1   -1   DI   -1   -1        -1   -1       -1   -1  513.TIF                                  
    353   1970  3 28   -1   -1        -1   -1        -1   -1       -1   -1  518.TIF  ANTICIPATED NATURAL OPENING     
    353   1970  3 31   -1   -1   IP   -1   -1        -1   -1       -1   -1  514.TIF  LOWER RIVER: ALONG SHORE        
    353   1970  3 31   -1   -1   DI   -1   -1        -1   -1       -1   -1  514.TIF  UPPER RIVER                     
    353   1970  4  7   -1   -1   DI   -1   -1   IJ   -1   -1   SW  -1   -1  515.TIF                                  
    353   1970  4 14   -1   -1   RI   -1   -1        -1   -1       -1   -1  516.TIF                                  
    353   1970  4 21   -1   -1   LI   -1   -1        -1   -1       -1   -1  517.TIF                                  
    357   1970  3  3   12   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    357   1970  3 10   -1   -1   BK   -1   -1   RT   -1   -1       -1   -1  511.TIF                                  
    357   1970  3 17   -1   -1   PI   -1   -1   SW   -1   -1       -1   -1  512.TIF                                  
    357   1970  3 24   -1   -1   BK   -1   -1        -1   -1       -1   -1  513.TIF                                  
    357   1970  3 31   -1   -1   IP   -1   -1        -1   -1       -1   -1  514.TIF  ALONG SHORE                     
    357   1970  4  7   -1   -1   DI   -1   -1   IJ   -1   -1   SW  -1   -1  515.TIF                                  
    357   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
    357   1970  4 21   -1   -1   OW   -1   -1        -1   -1       -1   -1  517.TIF                                  
    358   1970  3  3    2   -1        -1   -1        -1   -1       -1   -1  518.TIF  (20% ICE COVER)                 
    358   1970  3 10    4   -1        -1   -1        -1   -1       -1   -1  511.TIF  (10% ICE COVER)                 
    358   1970  3 24    3   -1        -1   -1        -1   -1       -1   -1  513.TIF  (10% ICE COVER)                 
    358   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    358   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    359   1970  2 24   -1   -1   IP   -1   -1        -1   -1       -1   -1  519.TIF                                  
    359   1970  3 24   -1   -1   DI   -1   -1        -1   -1       -1   -1  513.TIF                                  
    359   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    359   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    359   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF                                  
    359   1970  4 21   -1   -1   OW   -1   -1        -1   -1       -1   -1  517.TIF                                  
    363   1970  4  7   -1   -1   IJ   -1   -1   SO   -1   -1       -1   -1  515.TIF  TO DUNKIRK                      
    368   1970  4  3   -1   -1        -1   -1        -1   -1       -1   -1  518.TIF  ANTICIPATED ICEBREAKER OPENING  
    368   1970  4  7   -1   -1   WI   -1  240        -1   -1       -1   -1  515.TIF                                  
    368   1970  4 10   -1   -1        -1   -1        -1   -1       -1   -1  518.TIF  ANTICIPATED NATURAL OPENING     
    368   1970  4 21   -1   -1   RT   -1   -1   IJ   -1   -1   WI  -1   -1  517.TIF  OUTSIDE OF HARBOR               
    369   1970  3  3    2   -1        -1   -1        -1   -1       -1   -1  518.TIF  (70% ICE COVER)                 
    369   1970  3 10   -1   -1   IP   -1   -1        -1   -1       -1   -1  511.TIF  ALONG SHORE                     
    369   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    369   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    369   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    377   1970  3  3   -1   -1   WI   -1   -1        -1   -1       -1   -1  518.TIF                                  
    384   1970  2 24   -1   -1   SW   -1   -1        -1   -1       -1   -1  519.TIF  E OF ISLANDS & N SHORE          
    384   1970  2 24   -1   -1   SO   -1   -1   WI   -1   -1       -1   -1  519.TIF  E END                           
    384   1970  3  3   -1   -1   SO   -1   -1        -1   -1       -1   -1  518.TIF  E END                           
    384   1970  3 10   -1   -1   DI   -1   -1   WI   -1   -1       -1   -1  511.TIF  SW PORTION                      
    384   1970  3 10   -1   -1   SO   -1   -1        -1   -1       -1   -1  511.TIF  E END                           
    384   1970  3 10   -1   -1   DI   -1   -1        -1   -1       -1   -1  511.TIF  MID-LAKE                        
    384   1970  3 17   -1   -1   SO   -1   -1   WI   -1   -1       -1   -1  512.TIF  E END                           
    384   1970  3 31   -1   -1   IP   -1   -1   WI   -1   -1       -1   -1  514.TIF  E END                           
    384   1970  4  7   -1   -1   DI   -1   -1        -1   -1       -1   -1  515.TIF  EASTERN 2/3                     
    384   1970  4 14   -1   -1   HF   -1   -1   RT   -1   -1       -1   -1  516.TIF  E END                           
    384   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF  ALL HARBORS                     
    384   1970  4 21   -1   -1   IP   -1   -1   RT   -1   -1       -1   -1  517.TIF  E END                           
    385   1970  3 10    7   -1        -1   -1        -1   -1       -1   -1  511.TIF  (60% ICE COVER)                 
    385   1970  3 24    4   -1        -1   -1        -1   -1       -1   -1  513.TIF  (50% ICE COVER)                 
    385   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    385   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    386   1970  3 24   -1   -1   WI   -1   -1        -1   -1       -1   -1  513.TIF  TO PORT COLBORNE                
    391   1970  3 10   12   -1        -1   -1        -1   -1       -1   -1  511.TIF  (10% ICE COVER)                 
    391   1970  3 17    6   -1        -1   -1        -1   -1       -1   -1  512.TIF  (60% ICE COVER)                 
    391   1970  3 24    6   -1        -1   -1        -1   -1       -1   -1  513.TIF  (90% ICE COVER)                 
    391   1970  3 31    5   -1        -1   -1        -1   -1       -1   -1  514.TIF  (90% ICE COVER)                 
    391   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    396   1970  3 10    3   -1        -1   -1        -1   -1       -1   -1  511.TIF  (70% ICE COVER)                 
    396   1970  3 17    6   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    396   1970  3 24    6   -1        -1   -1        -1   -1       -1   -1  513.TIF  (70% ICE COVER)                 
    396   1970  3 31   10   -1        -1   -1        -1   -1       -1   -1  514.TIF  (90% ICE COVER)                 
    396   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    399   1970  3 10    4   -1        -1   -1        -1   -1       -1   -1  511.TIF                                  
    399   1970  3 17    5   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    399   1970  3 24    3   -1        -1   -1        -1   -1       -1   -1  513.TIF  (20% ICE COVER)                 
    399   1970  3 31    2   -1        -1   -1        -1   -1       -1   -1  514.TIF  (50% ICE COVER)                 
    399   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    400   1970  3 24   -1   -1   WI   -1   -1        -1   -1       -1   -1  513.TIF  TO ERIE: ALONG SHORE            
    407   1970  3  3   -1   -1   OW   -1   -1        -1   -1       -1   -1  518.TIF                                  
    407   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    407   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    407   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    414   1970  3  3    4   -1        -1   -1        -1   -1       -1   -1  518.TIF  (90% ICE COVER)                 
    414   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF                                  
    414   1970  3 17    3   -1        -1   -1        -1   -1       -1   -1  512.TIF  (90% ICE COVER)                 
    414   1970  3 24    4   -1        -1   -1        -1   -1       -1   -1  513.TIF  (10% ICE COVER)                 
    414   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    414   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    419   1970  3  3    6   -1        -1   -1        -1   -1       -1   -1  518.TIF  (60% ICE COVER)                 
    419   1970  3 10    4   -1        -1   -1        -1   -1       -1   -1  511.TIF  (50% ICE COVER)                 
    419   1970  3 17    3   -1        -1   -1        -1   -1       -1   -1  512.TIF  (30% ICE COVER)                 
    419   1970  3 24    2   -1        -1   -1        -1   -1       -1   -1  513.TIF  (20% ICE COVER)                 
    419   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    419   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    420   1970  3  3    7   -1        -1   -1        -1   -1       -1   -1  518.TIF                                  
    420   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF                                  
    420   1970  3 17    8   -1        -1   -1        -1   -1       -1   -1  512.TIF  (70% ICE COVER)                 
    420   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    420   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    420   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    425   1970  3 10    3   -1        -1   -1        -1   -1       -1   -1  511.TIF  (10% ICE COVER)                 
    425   1970  3 17    1   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
    425   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    425   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    425   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    438   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    438   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    438   1970  4 21   -1   -1   OW   -1   -1        -1   -1       -1   -1  517.TIF                                  
    439   1970  4  7   -1   -1   BK   -1   -1   RT   -1   -1       -1   -1  515.TIF                                  
    460   1970  2 24   -1   -1   HF   -1   -1        -1   -1       -1   -1  519.TIF  NE SHALLOWS                     
    460   1970  2 24   -1   -1   LF   -1   -1        -1   -1       -1   -1  519.TIF  MAIN BODY                       
    460   1970  3  3   -1   -1   HF   -1   -1        -1   -1       -1   -1  518.TIF  NE BAYS & CHANNELS              
    460   1970  3  3   -1   -1   OW   -1   -1        -1   -1       -1   -1  518.TIF  MAIN BODY                       
    460   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF  MAIN BODY                       
    460   1970  3 17   -1   -1   OW   -1   -1        -1   -1       -1   -1  512.TIF  MAIN BODY                       
    460   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF  EXCEPT NE END                   
    460   1970  3 31   -1   -1   IP   -1   -1        -1   -1       -1   -1  514.TIF  NE NARROWS                      
    460   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF  EXCEPT NE NARROWS               
    460   1970  4 14   -1   -1   IP   -1   -1        -1   -1       -1   -1  516.TIF  NE CHANNELS (50% ICE COVER)     
    460   1970  4 14   -1   -1   OW   -1   -1        -1   -1       -1   -1  516.TIF  ALL HARBORS                     
    460   1970  4 21   -1   -1   LI   -1   -1        -1   -1       -1   -1  517.TIF                                  
    462   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    462   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    462   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    474   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    474   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    474   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    479   1970  3 24   -1   -1   IP   -1   -1        -1   -1       -1   -1  513.TIF  (60% ICE COVER)                 
    479   1970  3 31   -1   -1   IP   -1   -1        -1   -1       -1   -1  514.TIF  (40% ICE COVER)                 
    479   1970  4  7    3   -1        -1   -1        -1   -1       -1   -1  515.TIF  (40% ICE COVER)                 
    482   1970  3 24   -1   -1   OW   -1   -1        -1   -1       -1   -1  513.TIF                                  
    482   1970  3 31   -1   -1   OW   -1   -1        -1   -1       -1   -1  514.TIF                                  
    482   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF                                  
    485   1970  3  3   26   -1        -1   -1        -1   -1       -1   -1  518.TIF  CANAL ENTRANCE                  
    488   1970  3  3   31   -1        -1   -1        -1   -1       -1   -1  518.TIF  UPPER LAKE                      
    488   1970  3  3   -1   -1   OW   -1   -1        -1   -1       -1   -1  518.TIF  LOWER LAKE                      
    488   1970  3 17   -1   -1   IP   -1   -1   BV   -1   -1       -1   -1  512.TIF  BELOW LOCK #3                   
    490   1970  3  3   22   -1   SW   -1   -1        -1   -1       -1   -1  518.TIF                                  
    490   1970  3 10   -1   -1   IP   -1   -1   SW   -1   -1       -1   -1  511.TIF                                  
    490   1970  3 17   -1   -1   IP   -1   -1   BV   -1   -1   SW  -1   -1  512.TIF                                  
    494   1970  3 10   -1   -1   IP   -1   -1   SW   -1   -1       -1   -1  511.TIF  BELOW LOCK: ALONG SHORE         
    494   1970  3 10   -1   -1   FS   -1   -1   SC   -1   -1       -1   -1  511.TIF  ABOVE LOCK                      
    495   1970  4 21   -1   -1   OW   -1   -1        -1   -1       -1   -1  517.TIF                                  
    497   1970  3 10   -1   -1   IP   -1   -1        -1   -1       -1   -1  511.TIF  ALONG SHORE                     
    497   1970  3 10   -1   -1   SW   -1   -1        -1   -1       -1   -1  511.TIF  MAIN CHANNEL                    
    497   1970  3 17   10   14        -1   -1        -1   -1       -1   -1  512.TIF  ALONG SHORE                     
    497   1970  3 17   -1   -1   SO   -1   -1        -1   -1       -1   -1  512.TIF  W OF ICE BOOM                   
    498   1970  2 24   -1   -1   HF   -1   -1   IJ   -1   -1   WI  -1   -1  519.TIF  ALONG SHORE                     
    498   1970  2 24   -1   -1   LF   -1   -1   SW   -1   -1       -1   -1  519.TIF  CHANNEL                         
    498   1970  3  3   18   -1        -1   -1        -1   -1       -1   -1  518.TIF  TIBBETS PT. TO CARLTON ISLAND   
    498   1970  3  3    6   -1        -1   -1        -1   -1       -1   -1  518.TIF  BARTLETT PT. TO THOUSAND ISL.   
    498   1970  3 10   14   -1        -1   -1        -1   -1       -1   -1  511.TIF  TIBBETS PT. TO CARLTON ISLAND   
    498   1970  3 10    5   -1        -1   -1        -1   -1       -1   -1  511.TIF  BARTLETT PT. TO THOUSAND ISL.   
    498   1970  3 10    4   -1   SW   -1   -1        -1   -1       -1   -1  511.TIF  THOUSAND ISL. TO WHISKEY ISL.   
    498   1970  3 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  511.TIF  ABOVE LOCK #15                  
    498   1970  3 10   -1   -1   IP   -1   -1        -1   -1       -1   -1  511.TIF  BELOW LOCK #15: ALONG SHORE     
    498   1970  3 10   -1   -1   SW   -1   -1        -1   -1       -1   -1  511.TIF  BELOW LOCK #15: MIDSTREAM       
    498   1970  3 17   14   -1        -1   -1        -1   -1       -1   -1  512.TIF  TIBBETS PT. TO CARLTON ISLAND   
    498   1970  3 17    5   -1        -1   -1        -1   -1       -1   -1  512.TIF  BARTLETT PT. TO THOUSAND ISL.   
    498   1970  3 17    4   -1   SW   -1   -1        -1   -1       -1   -1  512.TIF  THOUSAND ISL. TO WHISKEY ISL.   
    498   1970  3 24   -1   -1   RT   -1   -1   IJ   -1   -1       -1   -1  513.TIF                                  
    498   1970  3 31   -1   -1   RT   -1   -1   SW   -1   -1       -1   -1  514.TIF                                  
    498   1970  4  7   -1   -1   OW   -1   -1        -1   -1       -1   -1  515.TIF  CHANNEL                         
    498   1970  4  7   -1   -1   DI   -1   -1        -1   -1       -1   -1  515.TIF                                  
    500   1970  3 10   -1   -1   SW   -1   -1        -1   -1       -1   -1  511.TIF  MAIN CHANNEL                    
    500   1970  3 10   -1   -1   IP   -1   -1        -1   -1       -1   -1  511.TIF  ALONG SHORE                     
    500   1970  3 17   -1   -1   WI   -1   -1   RT   -1   -1   SW  -1   -1  512.TIF  MAIN CHANNEL                    
    500   1970  3 17   -1   -1   IP   -1   -1   NC   -1   -1       -1   -1  512.TIF  ALONG SHORE                     
    501   1970  3 17   30   -1        -1   -1        -1   -1       -1   -1  512.TIF                                  
 ---------------------------------------------------------------------------------------------------------------
 Ice thickness is in inches, -1 = no thickness reported, see report for ice conditon codes.
 T1 = ice thickness or part of a range if T2 is present,  C1 = primary condtion of ice.
 T1C1 = thickness of C1 or part of range if T2C1 is presnet.
 C2, T1C2, T2C2, C3, T1C3, T2C3 are secondary and ternary ice conditon and condition thickness.