The western
boundary runs between Lemhi Pass northward along the Idaho-Montana border
to the intersection of the Ravalli and Beaverhead County lines. This boundary
continues along the Forest boundary via the Anaconda-Pintlar range and
Sapphire Divide past Skalkaho Pass and across Rock Creek into the Welcome
Creek Wilderness. This boundary cuts north across the John Long Mountains
and intersects with Interstate 90. This zone includes the eastern-most
section of this wilderness area (Lolo National Forest) which is managed
by the Philipsburg District. The northern border follows Interstate 90
to Deerlodge, cuts east and runs along the Forest boundary, across the
divide, and intersects with Interstate 15. The eastern boundary runs southerly
and follows Interstate 15 through Butte and Dillon then along Route 41
to Clark Canyon Reservoir. The southern boundary extends west along Horse
Prairie Creek to Lemhi Pass. |
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