Sheep Hole Mountains and the Calumet Mountains define the arid landscape of this San Bernardino County desert expanse. The 2012 USGS study captures a transition zone where steep mountain slopes give way to broad alluvial fans and washes. A single thoroughfare, Sheep Hole Mountains Rd, provides the primary access through the southern portion of the quadrangle. This area represents a characteristic Mojave Desert environment where natural drainage patterns and topographical shifts are the dominant features, largely devoid of modern settlements or complex infrastructure beyond the essential roadway.
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This is the sole edition of this map. No revisions or reprints were ever made.
1942 · Amboy
USGS Topo · 1:250,000
1943 · Amboy
USGS Topo · 1:250,000
1943 · Cadiz Lake
USGS Topo · 1:62,500
1943 · Cadiz Valley
USGS Topo · 1:62,500
1954 · Needles
USGS Topo · 1:250,000
1954 · Bristol Lake SW
USGS Topo · 1:24,000
1956 · Needles
USGS Topo · 1:250,000
1956 · Dale Lake
USGS Topo · 1:62,500
1956 · Bristol Lake
USGS Topo · 1:62,500
1956 · Cadiz Lake
USGS Topo · 1:62,500