
Yellowstone National Park and the Shoshone National Forest meet at a high continental divide defined by prominent summits like Mount Schurz, Mount Humphreys, and Eagle Peak. This 1991 revision, based on 1980s aerial photography, documents a wilderness landscape managed by the U.S. Forest Service and the Department of the Interior. The boundary between the national park and the Washakie Wilderness follows the ridgeline, where water flows into drainages like Eagle Creek and Beaverdam Creek.
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This is the sole edition of this map. No revisions or reprints were ever made.
1885 · Lake
USGS Topo · 1:125,000
1893 · Ishawooa
USGS Topo · 1:125,000
1895 · Ishawooa
USGS Topo · 1:125,000
1895 · Lake
USGS Topo · 1:125,000
1896 · Lake
USGS Topo · 1:125,000
1899 · Ishawooa
USGS Topo · 1:125,000
1901 · Lake
USGS Topo · 1:125,000
1906 · Lake
USGS Topo · 1:125,000
1911 · Lake
USGS Topo · 1:125,000
1955 · Ashton
USGS Topo · 1:250,000