
The Continental Divide crests through this high-elevation wilderness in the late 1980s, marking the hydrological split where water begins its journey toward either the Pacific or Atlantic. This remote landscape is defined by the high Two Ocean Plateau, a massive upland where the headwaters of several major river systems originate. The Yellowstone River flows along the eastern edge of the plateau, while the Snake River emerges to the south, showcasing the critical role this terrain plays in the Western water network.
17 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.
1885 · Lake
USGS Topo · 1:125,000
1895 · Lake
USGS Topo · 1:125,000
1896 · Lake
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
1958 · Ashton
USGS Topo · 1:250,000
1959 · Mount Hancock
USGS Topo · 1:62,500
1959 · Two Ocean Pass
USGS Topo · 1:62,500