Steelhead fishing is closed on the Imnaha River, and fishing for Chinook salmon will not be allowed unless sufficient numbers of fish are observed at downstream locations on the Snake and Columbia Rivers.

Trout and whitefish can be caught throughout the river, and as the weather warms bass can be caught in the lower river. Fishing can be difficult during higher flows though.

The best public access is downstream of Horse Creek. Anglers fishing upstream of Horse Creek to the town of Imnaha need to make sure they are aware of land ownership boundaries and always ask for permission before fishing on private lands.

Anglers should remember that steelhead, Chinook salmon and bull trout may be encountered in the Imnaha River. They cannot be harvested and must be released.