The Clark Mountain Range dominates this portion of the Mojave National Preserve in San Bernardino County. Reaching its highest point at Clark Mtn, the landscape is defined by dramatic elevation changes and geological features such as the Clark Mountain Natural Arch and Colosseum Gorge. This high-desert environment is characterized by a series of critical water sources, including Whiskey Spring, Willow Spring, and Ivanpah Springs, which historically served as vital waypoints in an otherwise arid expanse. The transition from the open Mojave Desert floor into the steep drainages of Curtis Canyon and Kiwisar Canyon illustrates the complex topography of the Eastern Mojave. Utility infrastructure is noted by the presence of Powerline RD, providing a rare straight-line contrast to the winding canyons and ridges that define the wilderness area.
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1910 · Ivanpah
USGS Topo · 1:250,000
1912 · Ivanpah
USGS Topo · 1:250,000
1942 · Ivanpah
USGS Topo · 1:250,000
1947 · Kingman
USGS Topo · 1:250,000
1948 · Kingman
USGS Topo · 1:250,000
1954 · Kingman
USGS Topo · 1:250,000
1955 · Kingman
USGS Topo · 1:250,000
1955 · Mescal Range
USGS Topo · 1:62,500
1955 · Roach Lake
USGS Topo · 1:62,500
1956 · Ivanpah
USGS Topo · 1:62,500