River Trail (223) is an excellent hiking trail with a variety of views, habitat and topography. Parts of the trail follow the Clarkfork River, while other sections wander away from it. There is one stretch along a rock outcrop across a talis slope that should be crossed with caution. Although this is a designated mountain bike trail it should be noted that there are sections on both ends that are considered quite challenging.

Not for beginners.

Length: 9.0 miles

Trail Begins: Highway 135 (near bridge over Clark Fork River)

Trail Ends: South side cutoff road 9113

Area Map: Lolo Forest Visitors Map

USGS Map1: St. Regis

USGS Map2: Plains

Township 18N; Range 26W; Section 15