The Bow, Red Deer, and Oldman rivers are tributaries of the South Saskatchewan River. This family of rivers carries water from the Rocky Mountains across the dry southern prairies of Alberta and Saskatchewan.

The Bow River joins the Oldman River near Medicine Hat to form the South Saskatchewan River. Bow River waters flow all the way to Hudson Bay. Downstream communities that use these waters, such as Medicine Hat and Saskatoon, depend on us to care for the quality of the water as it passes through the Bow River basin.