Big River is a town located on the southern end of Cowan Lake in north central Saskatchewan, Canada. It is just north of Saskatchewan's extensive grain belt on Highway 55 and about 16 kilometres west of Prince Albert National Park. Delaronde Lake is accessed east of the town. Big River is approximately 132 kilometres from Prince Albert. Except for some land cleared for farming and a few natural meadows, the town is surrounded by the northern boreal forest.