Tecate Divide separates the drainage basins of this high-altitude landscape where the communities of Live Oak Springs, Manzanita, and Boulevard are established. The 2015 topography reveals a complex network of canyons and valleys, including Diabold Canyon and McCain Valley, which have long influenced the placement of transportation routes like Old Highway 80. This corridor has historically served as a vital link through the mountains of eastern San Diego County.
74 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1931 · Carrizo
USGS Topo · 1:125,000
1939 · Campo
USGS Topo · 1:62,500
1939 · Jacumba
USGS Topo · 1:62,500
1942 · Campo
USGS Topo · 1:62,500
1942 · Carrizo Mtn
USGS Topo · 1:62,500
1942 · Jacumba
USGS Topo · 1:62,500
1942 · Cuyapaipe
USGS Topo · 1:62,500
1950 · San Diego
USGS Topo · 1:250,000
1954 · San Diego
USGS Topo · 1:250,000
1955 · San Diego
USGS Topo · 1:250,000