Prairie Pothole Region

Often called the "Duck Factory" of North America, this region supports vast populations of migratory waterfowl. The network of small, shallow wetlands provides ideal nesting and feeding grounds for millions of ducks and geese. It is globally recognized as one of the most ecologically important wetland systems on the continent.

The depressions, known as potholes, were formed by glacial activity during the last Ice Age. As the massive glaciers retreated, they left behind chunks of buried ice that later melted to form these shallow wetlands. This geological process created a highly productive landscape across the northern plains.

The region spans parts of Canada, Minnesota, and the Dakotas, covering a massive footprint across the northern plains. In Canada, it primarily extends into Alberta, Saskatchewan, and Manitoba. The specific geography provides a crucial transition zone between dry prairie uplands and aquatic habitats.

Agricultural conversion and extensive drainage pose the most significant threats to the region's wetland ecosystem. Because the potholes are often viewed as obstacles to farming, many have been drained over the decades. Conservation organizations actively work to protect and restore these vital habitats.