Minnesota Master Naturalist
Biome
Biome
Biome

Prairies & Potholes

The official name for the ecological province called the Prairies & Potholes by the Minnesota Master Naturalist Program is the Prairie Parkland Province. This biome was historically composed mainly of tallgrass prairie. Today it is used for agricultural purposes. The glaciers deposited between 100 and 600 feet of drift over the entire region. The Prairies & Potholes biome covers just over 16 million acres on the western edge of the state.

The biome is a hot and dry place, where evapotranspiration is annually higher than precipitation. In the northern portions of the biome, glacial kettles have filled with water and form the "potholes" that dot the landscape. These bodies of water are important for migratory waterfowl, and waterfowl production. The Minnesota River now flows through the old channel carved by Glacial River Warren, an outlet for Glacial Lake Agassiz.

Source: Minnesota DNR

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