
Barrett Lake and its primary engineering works dominate this mid-century survey of the San Diego backcountry. The landscape is defined by the Barrett Dam, which impounds the waters of Cottonwood Creek and Boneyard Canyon. Downstream water management is evidenced by the Cottonwood Conduit and Cottonwood Tunnel, infrastructure critical for regional water transport.
55 named features on this map. Tap any name to fly to it.
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5 editions found
1893 · El Cajon
USGS Topo · 1:62,500
1901 · Elcajon
USGS Topo · 1:62,500
1903 · Cuyamaca
USGS Topo · 1:125,000
1903 · Elcajon
USGS Topo · 1:62,500
1904 · Southern California Sheet No. 2
USGS Topo · 1:250,000
1939 · El Cajon
USGS Topo · 1:62,500
1942 · Potrero
USGS Topo · 1:48,000
1942 · El Cajon
USGS Topo · 1:62,500
1942 · Cuyamaca Peak
USGS Topo · 1:62,500
1943 · Jamul
USGS Topo · 1:62,500