Riggs Wash snakes through this high-desert landscape in northeastern San Bernardino County, cutting a path through the Silurian Valley and the vast Mojave Desert. This 2018 survey by the U.S. Geological Survey reveals a region defined by sparse transportation infrastructure and complex topography. Local routes like Riggs Rd and Co 20905 Rd provide limited access to the arid interior, while the presence of Powerline Rd indicates the area's role in the regional utility grid. The land is organized by the Public Land Survey System, with township boundaries for t16n r8e and t15n r9e clearly delineated. The map's contour lines illustrate the intricate drainage patterns feeding into the wash, capturing the stark geographic character of the California desert before the most recent developments in infrastructure.
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1910 · Ivanpah
USGS Topo · 1:250,000
1912 · Ivanpah
USGS Topo · 1:250,000
1933 · Avawatz Mountains
USGS Topo · 1:250,000
1942 · Ivanpah
USGS Topo · 1:250,000
1947 · Trona
USGS Topo · 1:250,000
1947 · Kingman
USGS Topo · 1:250,000
1948 · Kingman
USGS Topo · 1:250,000
1948 · Trona
USGS Topo · 1:250,000
1953 · Trona
USGS Topo · 1:250,000
1954 · Kingman
USGS Topo · 1:250,000