
The international boundary between the United States of America Estados Unidos Mexicanos dominates the northern edge of this map, illustrating the high-desert borderlands where the Southern California wilderness meets Mexico. Situated on the divide between the San Diego Co Imperial Co line, the terrain is defined by extreme relief and drainage patterns typical of the In-Ko-Pah range. The most prominent landmark is Blue Angels Peak, a high point that watches over a landscape shaped by seasonal watercourses and complex topography. This survey provides a precise look at the jurisdictional overlaps of the border region in the early twenty-first century, documenting the remote character of the desert landscape before it descends into the lower basins to the east.
5 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.
1915 · El Centro
USGS Topo · 1:125,000
1931 · Carrizo
USGS Topo · 1:125,000
1939 · Jacumba
USGS Topo · 1:62,500
1940 · Coyote Wells
USGS Topo · 1:62,500
1942 · El Centro
USGS Topo · 1:250,000
1942 · Jacumba
USGS Topo · 1:62,500
1943 · Coyote Wells
USGS Topo · 1:62,500
1950 · San Diego
USGS Topo · 1:250,000
1954 · El Centro
USGS Topo · 1:250,000
1954 · San Diego
USGS Topo · 1:250,000