Great Lakes GIS

Great Lakes Commission is a leader in mapping and analysis for the Great Lakes and the St. Lawrence. We make our mapping work and Geographic Information System (GIS) files, called map layers, available to you. Click on Map Layers to find layers that you can download and web maps for you to explore. We create user friendly web applications (web apps) that are suitable for GIS users and non-GIS users alike to access products and conduct spatial analyses.

Here are several examples of web apps:

 

 

 


 

 

 

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