The Oldman watershed is a large land and water system that covers over 23,000km in Southwest Alberta and over 2000 km in to Montana.
Extending East from the Rocky Mountains, The Watershed’s distinct streams flow through the foothills, dry and irrigated farmland, in to the Prairie’s.
The Oldman Watershed includes among others; the Oldman River, Crowsnest River, Waterton Lake and River, Castle River, Police Outpost Lake and Bullshead Reservoir.