
The Southern Pacific railroad corridor anchors this 1901 survey, tracing the low-lying basin through Indio, Coachella, and Thermal. This era captures the landscape before modern irrigation transformed the valley, showing early settlements like Mecca and Mortmar situated well below sea level as they follow the rail line toward the Salton Basin. To the west, the topography rises sharply into the San Bernardino National Forest and the Santa Rosa Mountains, where resource extraction is marked by the Asbestos Mine and the Garnet Queen Mine. Cultural geography is preserved through the extensive boundaries of the Toro Indian Reservation and smaller holdings like the Augustin Indian Res. Researchers can find early desert outposts and watering holes such as Indian Well, Agua Dulce, and Figtree John that once served as vital stops in this arid terrain.
69 named features on this map. Tap any name to fly to it.
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7 editions found
1901 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1901 · San Jacinto
USGS Topo · 1:125,000
1903 · Ramona
USGS Topo · 1:125,000
1904 · Indio
USGS Topo · 1:125,000
1904 · Southern California Sheet No. 2
USGS Topo · 1:250,000
1904 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1931 · Vallecito
USGS Topo · 1:125,000
1939 · Warner Springs
USGS Topo · 1:62,500
1939 · Santa Ysabel
USGS Topo · 1:62,500
1939 · Borrego
USGS Topo · 1:62,500