
Jacumba sits at the southern edge of this 1959 survey, positioned along the Boundary Line United States Mexico where the high desert meets the international border. The landscape is defined by the steep grades of the Jacumba Mountains and the In-Ko-Pah Mountains, which necessitated the winding route of the San Diego and Arizona Eastern railroad. This line, known for its engineering complexity, includes the dramatic Carrizo Gorge and specialized sidings like Dubber Spur.
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2 editions found
1915 · El Centro
USGS Topo · 1:125,000
1931 · Carrizo
USGS Topo · 1:125,000
1939 · Campo
USGS Topo · 1:62,500
1939 · Jacumba
USGS Topo · 1:62,500
1940 · Plaster City
USGS Topo · 1:62,500
1940 · Coyote Wells
USGS Topo · 1:62,500
1942 · El Centro
USGS Topo · 1:250,000
1942 · Campo
USGS Topo · 1:62,500
1942 · Carrizo Mtn
USGS Topo · 1:62,500
1942 · Jacumba
USGS Topo · 1:62,500