Thank you for the tip about the Natural Earth website (Natural Earth )!
This site has Great Lakes and GL Watershed shapefiles
Great Lakes and Watersheds Shapefiles - ScienceBase-Catalog
Here is the FREE downloadable archive (we drawn)
This is the full map (shapefiles in zip archive) of the GREAT LAKES – US and CA
Water File – Lakes and Rivers (polygons) – 2020
List of the files in this archive: