River Junction is a primitive state fishing access site located at the confluence of the Blackfoot River and North Fork Blackfoot River, offering 6 campsites with basic amenities (vault toilets, fire rings, picnic tables) on a first-come, first-served basis with a 7-day maximum stay.

The rough road access is challenging for trailers and RVs, and there is no potable water available on-site, but several campsites sit directly along the river with a carry-in boat launch for non-motorized watercraft.

This remote, peaceful location is ideal for anglers and paddlers seeking solitude away from developed campgrounds.