
The high desert community of Morongo Valley is the focal point of this late 20th-century survey, situated at the transition between the San Bernardino Mts and the northern edge of the Coachella Valley. The landscape is defined by the drainage systems of Big Morongo Canyon and Little Morongo Canyon, which converge toward the Dry Morongo Wash. Local infrastructure of the era is evident in the alignment of the Twentynine Palms Highway and the path of the Colorado River Aqueduct passing through the southern hills. Notable local landmarks like Covington Park and the Morongo Valley Sch sit near the valley floor, while the surrounding canyons reveal scattered development such as Pierce Ranch and Little Morongo Heights. The map also captures several natural water sources critical to the area, including Sherman Shady Spring and Leopard Spring.
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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
1901 · San Jacinto
USGS Topo · 1:125,000
1902 · San Gorgonio
USGS Topo · 1:125,000
1904 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1940 · Palm Springs
USGS Topo · 1:62,500
1941 · Edom
USGS Topo · 1:62,500
1944 · Palm Springs
USGS Topo · 1:62,500
1944 · Edom
USGS Topo · 1:62,500
1947 · Santa Ana
USGS Topo · 1:250,000
1949 · Santa Ana
USGS Topo · 1:250,000