The Targhee National Forest defines the rugged geography of this borderland, where the high-altitude terrain of Gallatin County, Montana meets the Idaho state line. This 2017 survey details a landscape shaped by massive geologic forces, notably the northern edge of the Island Park Caldera and the deep incision of Black Canyon. A complex drainage network of seasonal and perennial streams, including Thirsty Creek, Moose Creek, and Fish Creek, carves through the forest, emphasizing the area's importance as a mountain watershed.
29 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.
1955 · Ashton
USGS Topo · 1:250,000
1957 · Buffalo Lake
USGS Topo · 1:62,500
1958 · Ashton
USGS Topo · 1:250,000
1958 · West Yellowstone
USGS Topo · 1:62,500
1960 · Ashton
USGS Topo · 1:250,000
1964 · Hatchery Butte
USGS Topo · 1:24,000
1964 · Island Park
USGS Topo · 1:24,000
1964 · Big Springs
USGS Topo · 1:24,000
1964 · Henrys Lake
USGS Topo · 1:62,500
1986 · Jack Straw Basin
USGS Topo · 1:24,000