This is a shapefile of past glacial lake strandlines for northwest Ohio.  The mapping was
done by Dr. Jane Forsyth in "Forsyth, J.L. 1959. The Beach Ridges of Northern Ohio. 
The Ohio Department of Natural Resources, Division of Geological Survey. Information Circular 
no. 25, 10p."  The strandlines were then digitized by Bruce Skubon for northwest Ohio.
There is also a layer file in which the symbology is set for the glacial lake name.