Chocolate Mountains terrain dominates this 2015 survey of the California desert, showing the complex topography of the range as it was recorded in the early 21st century. The map centers on the arid interior of Imperial County, a landscape defined by significant elevation changes and seasonal drainage patterns. Notable landmarks include the prominent Lion Head Mtn in the western half of the quadrangle and the natural corridor of Salvation Pass to the southeast. For those interested in the rare water sources of this environment, the location of Salvation Spring is clearly identified near the southern boundary. The inclusion of Public Land Survey System grids, such as t9s r16e and t10s r15e, provides a framework for understanding the land divisions in this largely unpopulated region.
8 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.
1940 · Iris
USGS Topo · 1:62,500
1940 · Iris Pass
USGS Topo · 1:62,500
1945 · Iris Pass
USGS Topo · 1:62,500
1945 · Iris
USGS Topo · 1:62,500
1953 · Chuckwalla Spring
USGS Topo · 1:62,500
1953 · Acolita
USGS Topo · 1:62,500
1954 · Salton Sea
USGS Topo · 1:250,000
1955 · Tortuga
USGS Topo · 1:24,000
1955 · Salton Sea
USGS Topo · 1:250,000
1956 · Iris
USGS Topo · 1:24,000