Pershal Spring and the drainage network of Twentyone Creek characterize this high-elevation landscape in the late 2010s. The terrain is defined by a complex series of watercourses, including the W Fork Twentyone Cr and E Fork Twentyone Cr, which feed into the primary creek system. These natural features represent the vital water sources in an area primarily defined by topographical contours and occasional landmarks like Putney Flat. The map highlights the intersection of several townships, including t45n r100w and t44n r99w, illustrating the legacy of the Public Land Survey System in organizing this portion of the American West. Significant draws and creeks such as Dugout Draw and Cottonwood Cr emphasize the importance of ephemeral and permanent water flow in shaping the local geography.
19 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.
1913 · Grass Creek Basin
USGS Topo · 1:62,500
1915 · Grass Creek Basin
USGS Topo · 1:62,500
1955 · Thermopolis
USGS Topo · 1:250,000
1956 · Milk Creek
USGS Topo · 1:24,000
1956 · Twentyone Creek
USGS Topo · 1:24,000
1956 · Soapy Dale Peak
USGS Topo · 1:24,000
1956 · Adam Weiss Peak
USGS Topo · 1:24,000
1958 · Thermopolis
USGS Topo · 1:250,000
1962 · Thermopolis
USGS Topo · 1:250,000
1965 · Embar
USGS Topo · 1:24,000