The Little Chuckwalla Mountains dominate this arid landscape in Imperial County, where the topography is defined by sharp elevation shifts and desert washes. This 2012 survey captures a remote region where historic transportation routes intersect with the natural terrain of the Black Hills. Of particular interest to historians and desert explorers are the remnants of early westward expansion routes, including the Butterfield Trl and The Bradshaw Trl. These corridors follow the natural contours of the land, providing a record of the paths taken by travelers and freight before modern infrastructure. The map also traces Graham Pass Rd as it cuts through the northwestern portion of the range, offering a detailed look at the drainage patterns and geographical isolation that characterize this part of the California desert.
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This is the sole edition of this map. No revisions or reprints were ever made.
1942 · Blythe
USGS Topo · 1:250,000
1952 · Mc Coy Spring
USGS Topo · 1:62,500
1952 · Sidewinder Well
USGS Topo · 1:62,500
1953 · Palo Verde Mountains
USGS Topo · 1:62,500
1953 · Chuckwalla Spring
USGS Topo · 1:62,500
1954 · Salton Sea
USGS Topo · 1:250,000
1955 · Salton Sea
USGS Topo · 1:250,000
1959 · Salton Sea
USGS Topo · 1:250,000
1963 · Salton Sea
USGS Topo · 1:250,000
1965 · Salton Sea
USGS Topo · 1:250,000