Cadiz Lake dominates the northern landscape of this San Bernardino County survey, where the dry playa bed meets the expansive arid flats of the Cadiz Valley. The terrain is characterized by a complex network of ephemeral wash patterns that drain from the south and east toward the lake bed, illustrating the hydrological signature of the Mojave Desert. This 2012 topographic study, produced by the U.S. Geological Survey, provides a detailed record of these natural drainage features and the subtle elevation changes of the desert floor during a period of modern environmental observation. The lack of built infrastructure or settlements within this quadrangle emphasizes the geological and topographical isolation of the valley, making it a distinct reference for researchers studying desert landforms and shifting drainage corridors.
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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
1943 · Iron Mountains
USGS Topo · 1:62,500
1954 · Needles
USGS Topo · 1:250,000
1956 · Needles
USGS Topo · 1:250,000
1956 · Milligan
USGS Topo · 1:62,500
1956 · Iron Mountains
USGS Topo · 1:62,500
1956 · Cadiz Lake
USGS Topo · 1:62,500