
The Ashley National Forest and High Uintas Wilderness converge here, creating a landscape defined by complex water management and high-elevation terrain. Central to the area is the Yellowstone Power Diversion Reservoir on the Yellowstone River, which indicates early 21st-century hydroelectric or irrigation infrastructure. The geography is marked by numerous springs and small-scale reservoirs, including Burnt Mill Spring and Mud Spring Reservoir Number 3, supporting the high-plateau environment of Seventyseven Flat. Movement through the region relies on a network of traditional paths and forest roads like the Yellowstone Trl and High Line Rd. These routes connect remote landmarks such as Flat Top Mtn and the distinct geological formation of the Yellow Ledges, reflecting a modern era of forest management and wilderness preservation.
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This is the sole edition of this map. No revisions or reprints were ever made.
1885 · Uinta
USGS Topo · 1:250,000
1905 · Gilbert Peak
USGS Topo · 1:125,000
1906 · Gilbert Peak
USGS Topo · 1:125,000
1939 · Duchesne
USGS Topo · 1:125,000
1954 · Salt Lake City
USGS Topo · 1:250,000
1958 · Salt Lake City
USGS Topo · 1:250,000
1960 · Salt Lake City
USGS Topo · 1:250,000
1965 · Mount Emmons
USGS Topo · 1:24,000
1965 · Heller Lake
USGS Topo · 1:24,000
1965 · Mountain Home
USGS Topo · 1:24,000