The Bristol Mountains dominate the arid topography of this San Bernardino County desert landscape, as charted by the U.S. Geological Survey in 2012. This region is characterized by ephemeral drainages and vast alluvial fans, most notably the prominent Siberia Wash which cuts through the southeastern corner of the quadrangle. The lack of man-made structures, roads, or settlements within this specific boundary highlights the primitive and undeveloped state of the Mojave Desert in the early 21st century. Instead, the map provides a high-resolution study of natural desert landforms, illustrating how seasonal water flow from the higher elevations of the Bristol Mountains has shaped the surrounding drainage basins over millennia.
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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
1953 · San Bernardino
USGS Topo · 1:250,000
1954 · Needles
USGS Topo · 1:250,000
1955 · Ash Hill
USGS Topo · 1:24,000
1955 · Broadwell Lake
USGS Topo · 1:62,500
1955 · Ludlow
USGS Topo · 1:62,500
1956 · San Bernardino
USGS Topo · 1:250,000
1956 · Needles
USGS Topo · 1:250,000
1956 · Bagdad
USGS Topo · 1:62,500