Prairie Pothole Region

The Prairie Pothole Region is an area of the northern Great Plains characterized by thousands of shallow, water-filled depressions called potholes. These natural wetland basins were formed by Wisconsin-era glaciers and serve as vital breeding and nesting grounds for numerous waterfowl, especially ducks. Covering parts of states like North Dakota, South Dakota, Minnesota, and Montana, the region supports rich biodiversity and is crucial for water filtration, flood control, and maintaining regional ecosystems. Its wetlands are among the most productive and important in North America for wildlife and environmental health.