The San Diego River winds through this heavily developed region of San Diego County, marking a stark contrast between the urban sprawl and the preserved peaks of the Mission Trails area. The steep slopes of Cowles Mtn and Fortuna Mtn rise above the suburban neighborhoods of La Mesa, El Cajon, and Lemon Grove. This 2018 survey documents a landscape defined by critical infrastructure, showing the Second San Diego Aqueduct and the Murray Reservoir providing essential water resources to the expanding metropolitan area.
272 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.
1893 · El Cajon
USGS Topo · 1:62,500
1901 · Elcajon
USGS Topo · 1:62,500
1903 · Cuyamaca
USGS Topo · 1:125,000
1903 · La Jolla
USGS Topo · 1:62,500
1903 · Elcajon
USGS Topo · 1:62,500
1904 · San Diego
USGS Topo · 1:62,500
1904 · Southern California Sheet No. 2
USGS Topo · 1:250,000
1930 · La Jolla
USGS Topo · 1:62,500
1930 · San Diego
USGS Topo · 1:62,500
1939 · El Cajon
USGS Topo · 1:62,500