Great Lakes GIS
Great Lakes GIS Map Layers
Below is a quick list of the GIS layers available for the Great Lakes Basin. Please click on a category to expand and view the associated GIS layers. If you would like more, please search our ArcGIS Online resource page linked here.
Political Boundaries
- Great Lakes States Boundaries
- Congressional Districts for the 115th U.S. Congress
- Illinois County Boundaries
- Indiana county boundaries
- Michigan County Boundaries
- Minnesota County Boundaries
- New York County Boundaries
- Ohio County Boundaries
- Pennsylvania County Boundaries
- Wisconsin County Boundaries
- Canadian Great Lakes provinces boundaries