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Great Lakes Basin Map




Created by Michigan Sea Grant

7-foot x 10-foot Vinyl, Color Map

Take a walk through the Great Lakes on this colorful map showing the five Great Lakes and the drainage area for each lake.

The map includes a depth profile of each lake, major rivers within the system, the direction and volume of flow through each of the lakes, and illustrates the 2,212 mile journey of water from Lake Superior out to the Atlantic Ocean. 

Learn how to use the map at 

This map can be purchased (printed when ordered so please allow extra time) or it can be borrowed from the Wisconsin Water Library by any adult residing in Wisconsin at & indicate the Great Lakes Basin map, Call No. on1148177039.

For those not residing in Wisconsin, contact the Sea Grant Program in your Great Lakes state, listed at