Jump Off Peak stands at the center of this high-elevation terrain within the Lewis & Clark National Forest, where the borders of Fergus and Golden Valley counties meet. The landscape is defined by the severe topography of the Big Snowy Mountains, featuring sharp divides such as Knife Blade Ridge and Black Ridge. These ridges separate deeply cut drainages including East Fork Green Pole Canyon and Lyon Canyon. Watercourses such as Beaver Creek and Cottonwood Creek flow from these heights, while the Crystal Cascades mark a distinct point of hydrological interest. Notable summits like Mt Harlow and Lime Cave Peak provide anchor points for navigating this backcountry. The presence of Lost Horse Pass and Snow-Saucer Coulee suggests the natural routes used to traverse these steep elevations before the establishment of modern forest service access.
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1889 · Big Snowy Mountain
USGS Topo · 1:250,000
1893 · Big Snowy Mountain
USGS Topo · 1:250,000
1954 · Roundup
USGS Topo · 1:250,000
1958 · Roundup
USGS Topo · 1:250,000
1970 · Crystal Lake
USGS Topo · 1:24,000
1970 · Half Moon Canyon
USGS Topo · 1:24,000
1970 · West Fork Beaver Creek
USGS Topo · 1:24,000
1970 · Heath
USGS Topo · 1:24,000
1970 · Castle Butte
USGS Topo · 1:24,000
1970 · Jump Off Peak
USGS Topo · 1:24,000