
Borego and its surrounding desert valley serve as the focal point for this mid-century topographic study, capturing the early layout of the Desert Lodge and the sparse ranching outposts of San Diego County. The landscape is defined by its seasonal water features and ancient travel corridors, including the Old Overland Stage Route which winds through Earthquake Valley toward Blair Valley. This route provides a clear look at the historical transit patterns through the Vallecito Mountains and Pinyon Mountains before the expansion of modern highway networks.
34 named features on this map. Tap any name to fly to it.
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2 editions found
1903 · Cuyamaca
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
1931 · Vallecito
USGS Topo · 1:125,000
1931 · Carrizo
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
1941 · Clark Lake
USGS Topo · 1:62,500