Targhee Pass serves as a critical geographic gateway along the Continental Divide, where the high-altitude terrain of the Henrys Lake Mountains meets the state border. This landscape is defined by the headwaters of numerous drainages, including Targhee Cr and Tygee Cr, which carve through the high country of the Targhee National Forest and Gallatin National Forest. To the south, the settlement of Island Park sits near the Henry's Lake Flat, a broad basin containing Henrys Lake and its associated infrastructure like the Henry's Lake Airport and the Targhee Cem. The map illustrates the intersection of recreation and utility, showing established camps near Howard Spring and Mountain Springs alongside the remote peaks of Bald Peak and Mt Two Top. The placement of Lionhead near the northern boundary highlights the region's prominence as a high-elevation junction for travelers crossing between Idaho and Montana.
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This is the sole edition of this map. No revisions or reprints were ever made.
1950 · Hebgen Dam
USGS Topo · 1:62,500
1955 · Ashton
USGS Topo · 1:250,000
1958 · Ashton
USGS Topo · 1:250,000
1958 · West Yellowstone
USGS Topo · 1:62,500
1958 · Tepee Creek
USGS Topo · 1:62,500
1960 · Ashton
USGS Topo · 1:250,000
1964 · Targhee Pass
USGS Topo · 1:24,000
1964 · Targhee Peak
USGS Topo · 1:24,000
1964 · Sawtell PK
USGS Topo · 1:24,000
1964 · Big Springs
USGS Topo · 1:24,000