
Lake Henshaw dominates the northwestern landscape, flooding a portion of the high mountain basin where the Santa Ysabel Indian Reservation meets the historic land grants of the Valle de San Jose (Portilla). This 1960s-era topographic view captures the region's transition from a working ranching economy to a managed watershed. The map records several vital human outposts, including the crossroads at Morettis Junction and the namesake Warners Ranch, which marks a critical node on the overland route from the desert to the coast.
32 named features on this map. Tap any name to fly to it.
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5 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