Dome Rock Mountains dominate the western half of this quadrangle, creating a high-relief landscape that separates the desert basins. In the north, the settlement of Quartzsite serves as a focal point where roads like Rainbow Trl and Cholla Rd meet. The topography is defined by sharp peaks such as Cunningham Mtn, Ferra Peak, and Sawtooth Mtn, while the Copper Bottom Pass provides a transition through the central range. Drainages including Ehrenberg Wash, La Cholla Wash, and Tyson Wash carve through the arid terrain, illustrating the hydrologic patterns that define the La Posa Plain. Water sources like Tule Springs are critical landmarks in this environment. The map shows the desert's character through its combination of mountain passes and the broad, flat expanses that stretch toward the eastern horizon.
25 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.
1933 · Cunningham Mtn
USGS Topo · 1:48,000
1934 · Trigo Peaks
USGS Topo · 1:48,000
1939 · Trigo Peaks
USGS Topo · 1:62,500
1940 · Dome Rock Mts
USGS Topo · 1:62,500
1942 · Blythe
USGS Topo · 1:250,000
1954 · Salton Sea
USGS Topo · 1:250,000
1954 · Trigo Peaks
USGS Topo · 1:62,500
1955 · Salton Sea
USGS Topo · 1:250,000
1955 · La Paz Mtn
USGS Topo · 1:24,000
1959 · Salton Sea
USGS Topo · 1:250,000