2017 Map of West Fork Butte

About this map

Lolo National Forest and Clearwater National Forest meet along the high ridgeline of the Bitterroot Range, marking the transition from Montana into Idaho. This 2017 survey captures the drainage patterns of the upper Lochsa and Lolo River systems, where Brushy Fork and Lolo Cr originate from the steep slopes of the continental divide. Notable landmarks including West Fork Butte and Skookum Butte define the horizon, while the terrain falls away into basins like Sally Basin and Chief Joseph Gulch. The map illustrates a landscape shaped by narrow forestry roads such as Elk Meadows Rd and Nat For Dev Rd 59561, which provide the primary access to high-altitude water bodies like Granite Lake and the marshy expanses of Lost Park Meadows.