Battle Creek (Milk River)
It flows into the Milk River in Blaine County, Montana. Battle Creek and other tributaries of the Milk River in the southern portions of Alberta and Saskatchewan is one of two drainage areas of Canada where the water ultimately flows into the Gulf of Mexico, the other being the Poplar River drainage in Saskatchewan.
Battle Creek flows for 203 km and has a drainage area of 2,600 km².
Fort Walsh was established on the river on the Saskatchewan side of Cypress Hills Interprovincial Park.
The fish species include northern pike, rainbow trout, brook trout, brown trout, burbot, common carp, white sucker and shorthead redhorse. The river along with Lake Diefenbaker are the only two bodies of water in Saskatchewan that support a reproducing population of rainbow trout. There is concern that Asian carp, particularly Silver carp may spread up the river and the other south flowing rivers that drain into the Milk River, like the Frenchman River.
-  Fish Species of Saskatchewan