This area consists of rolling grassy hills and river valleys of the Rocky Mountains foothills in the US state of Montana and the Canadian province of Alberta.

Finally the ecoregion contains parts of the Prairie Pothole Region, large areas of wetland and rich grass on the Rocky Mountain Front steppe.

The traditional wildlife of this area of included the large herds American bison, elk and bighorn sheep observed during the Lewis and Clark Expedition in the early 19th century but which now remain in small numbers only.

Expansion of cities in both Montana and Alberta is removing habitat and blocking the movements of native species including grizzly bears, elk, mule deer and others.

[3] Areas of relatively intact grassland and wetland on the Rocky Mountain Front include the Pine Butte Swamp Preserve near Choteau, Montana,[4] parts of the Blackfeet Indian Reservation, and a number of other hills and valleys of southwestern Montana including the Centennial Mountains, the Big Hole River and parts of the Madison River valleys.