Otay Mountain and the San Ysidro Mountains dominate this borderland landscape, where the high ridges of the California-Baja California line meet a network of steep canyons and drainage basins. The map illustrates a complex topographical interface near the international boundary, characterized by the winding course of the Tijuana River and several significant tributaries including Dulzura Cr and Cottonwood Cr. Human presence is concentrated in small pockets like Doghouse Junction and along the roads that navigate the difficult terrain, such as Marron Valley Rd and Donahoe Spur Rd.
16 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.
1903 · Cuyamaca
USGS Topo · 1:125,000
1904 · Southern California Sheet No. 2
USGS Topo · 1:250,000
1942 · Potrero
USGS Topo · 1:48,000
1943 · Jamul
USGS Topo · 1:62,500
1944 · Potrero
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
1955 · Jamul Mountains
USGS Topo · 1:24,000
1955 · Otay Mesa
USGS Topo · 1:24,000