Northern Prairie Wildlife Research Center
|46e. Tewaukon Dead Ice Moraine||Level IV Ecoregion|
|The Northern Glaciated Plains
ecoregion is characterized by a flat to gently rolling landscape
composed of glacial drift. The subhumid conditions foster a grassland
transitional between the tall and shortgrass prairie. High concentrations
of temporary and seasonal wetlands create favorable conditions for duck
nesting and migration. Though the till soil is very fertile, agricultural
success is subject to annual climatic fluctuations.
The Tewaukon Dead Ice Moraine is a continuation of the Prairie Coteau (46k) that extends below the level of the Prairie Coteau Escarpment (461). A high density of semipermanent wetlands provide feeding and nesting habitat for dabbling ducks (blue-winged teal and mallard), and diving ducks (redhead and canvasback). Most upland areas are used for cultivated crops.
Area (square miles): 960
Surficial Material and Bedrock
Order (Great Groups)
Precipitation - Mean annual (inches)
Potential Natural Vegetation
Western wheatgrass, green needlegrass, blue grama, needleandthread, sideoats grama.
Land Use and Land Cover
Mostly used for small grains and hay. Wetlands provide wildlife habitat.