
Banning and Beaumont serve as the primary hubs along the Southern Pacific line in this 1956 survey of the San Gorgonio Pass. The map illustrates a landscape shaped by critical water infrastructure, featuring the sprawling routes of the Colorado River Aqueduct and the San Diego Aqueduct as they cut through the mountains toward the coastal basins. The region’s mid-century character is defined by a mix of agricultural settlements like Cherry Valley and noted retreats such as Soboba Hot Springs and Gilman Hot Springs.
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2 editions found
1899 · Redlands
USGS Topo · 1:62,500
1901 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1901 · San Jacinto
USGS Topo · 1:125,000
1901 · Redlands
USGS Topo · 1:62,500
1901 · Elsinore
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
1940 · Hemet Reservoir
USGS Topo · 1:62,500
1942 · Banning
USGS Topo · 1:62,500