
Warner Springs serves as the focal point for this 1950s study of the high desert and mountain transition in San Diego County. The landscape is defined by the broad Valle De San Jose (Portilla) and the waters of Lake Henshaw at the southwestern edge, an area subject to controlled inundation. The map reveals a distinct military and institutional presence during the Cold War era, including the U S Navy Survival Training School and several sites for the Puerta La Cruz Conservation Camp.
41 named features on this map. Tap any name to fly to it.
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4 editions found
1903 · Ramona
USGS Topo · 1:125,000
1904 · Southern California Sheet No. 2
USGS Topo · 1:250,000
1939 · Warner Springs
USGS Topo · 1:62,500
1939 · Santa Ysabel
USGS Topo · 1:62,500
1939 · Palomar Mountain
USGS Topo · 1:62,500
1942 · Ramona
USGS Topo · 1:62,500
1943 · Santa Ysabel
USGS Topo · 1:62,500
1943 · Warner Springs
USGS Topo · 1:62,500
1947 · Ramona
USGS Topo · 1:62,500
1947 · Santa Ana
USGS Topo · 1:250,000