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Information on Research Based Water Level Observations

QUINN, F.H., and C.E. SELLINGER. Note. Lake Michigan record levels of 1838, a present perspective. Journal of Great Lakes Research 16(1):133-138 (1990).

Additional perspective on Lake Michigan-Huron water levels is provided by this pre-1860 monthly water level data set recorded in Milwaukee, Wisconsin between 1815 and 1859, encompassing a period of high water levels in 1838. These data were adjusted to the outlet at Harbor Beach to account for isostatic rebound and translated from the Lake Survey Datum of 1877 to IGLD 1955. The data set was updated to IGLD 1985 using a Harbor Beach correction of 0.214 meters.