Big Prairie serves as a remote focal point at the junction of several drainage systems in this 2014 survey of the Lewis and Clark Range. The landscape is dominated by the dramatic uplift of the Chinese Wall and the Flathead Alps, where the Flathead National Forest and Lewis & Clark National Forest meet. This terrain is defined by its complex hydrology, with the White River and South Fork White River carving deep valleys between high summits like Haystack Mtn and Tillson Peak. The map highlights the intersection of Flathead, Powell, and Lewis and Clark counties, marking a high-elevation backcountry where geography dictates the path of travel through White River Pass. Explorers and researchers can trace the course of the South Fork Flathead River and identify localized high-altitude water bodies such as Prisoner Lake.
34 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1902 · Ovando
USGS Topo · 1:125,000
1905 · Ovando
USGS Topo · 1:125,000
1936 · Silvertip
USGS Topo · 1:96,000
1942 · Silvertip
USGS Topo · 1:125,000
1955 · Choteau
USGS Topo · 1:250,000
1957 · Choteau
USGS Topo · 1:250,000
1958 · Choteau
USGS Topo · 1:250,000
1962 · Choteau
USGS Topo · 1:250,000
1970 · Big Salmon Lake East
USGS Topo · 1:24,000
1970 · Prairie Reef
USGS Topo · 1:24,000