Piñon Hills and Phelan occupy the high desert transition where the San Gabriel Mountains meet the Mojave. This 2018 survey illustrates the complex water infrastructure vital to Southern California, most notably the Governor Edmund G. Brown East Branch California Aqueduct. The residential grid of these unincorporated communities is defined by named roads like Wagon Train Rd and Duncan Rd, reflecting mid-century development patterns that expanded into the alluvial fans. To the south, the terrain becomes dramatically more complex as the land rises into the San Bernardino National Forest. Here, steep drainages such as Horse Canyon, Wildhorse Canyon, and Cajon Canyon cut through the landscape, while Fremont Wash and Sheep Cr trace the natural paths of intermittent desert waters across the developed flats.
177 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.
1901 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1902 · Hesperia
USGS Topo · 1:62,500
1903 · San Antonio
USGS Topo · 1:62,500
1904 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1930 · Angle
USGS Topo · 1:24,000
1932 · Angle
USGS Topo · 1:24,000
1932 · Barstow
USGS Topo · 1:125,000
1934 · Barstow
USGS Topo · 1:125,000
1934 · Boneyard Canyon
USGS Topo · 1:24,000
1936 · Swarthout
USGS Topo · 1:24,000