Great Lakes Bathymetry

Great Lakes Bathymetric Data Maps (.gif)

Higher Resolution Great Lakes Bathymetric Maps (.jpg)

Gridded Bathymetric Data and Digitized Shorelines

Digitized shorelines (Column-formatted) for the Great Lakes:

Great Lakes Data Rescue (Bathymetry maps from NOAA NGDC)

For more information, see: Computerized Bathymetry and Shorelines of the Great Lakes - NOAA Data Report DR-16. D.J. Schwab and D.L. Sellers (1980...revised 1996)