In the east, the Clark Fork River separates the Boulders from the Flint Creek Range. Upstream, the headwaters of the Clark Fork divide the Boulder Mountains from the Highland Range to its south.

The West Boulder Trail is a perfect spot for a day hike, about 6 miles roundtrip to the meadows with minimal elevation gain and spectacular scenery. The trail passes through the scar of the 2006 ...

Rising north of Butte, east of Deer Lodge, south of Highway 12 between Helena and Garrison Junction, and west of the Jefferson City-Clancy area and the Boulder River Valley, the Boulder Mountains ...