
Simpson Park Mountains dominate the central topography of this Nevada quadrangle, forming a series of canyons and peaks that straddle the boundary of Lander and Eureka counties. The landscape is defined by its water sources, with numerous springs such as Crystal Spring, Petunia Spring, and the numbered Cottonwood Number One and Two Springs sustaining the arid terrain. Human navigation through this high-elevation area is marked by Deer Pass and the long corridor of Grass Valley Rd following the western flats.
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This is the sole edition of this map. No revisions or reprints were ever made.
1926 · Roberts Mountains
USGS Topo · 1:250,000
1929 · Roberts Mountains
USGS Topo · 1:250,000
1949 · Roberts Creek Mtn
USGS Topo · 1:62,500
1951 · Roberts Creek Mtn
USGS Topo · 1:62,500
1955 · Millett
USGS Topo · 1:250,000
1956 · Bartine Ranch
USGS Topo · 1:62,500
1956 · Walti Hot Springs
USGS Topo · 1:62,500
1956 · Ackerman Canyon
USGS Topo · 1:62,500
1959 · Millett
USGS Topo · 1:250,000
1979 · Simpson Park Mtns
USGS Topo · 1:100,000