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1955 Map of Jamul Mountains, 1987 Print
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1955 Map of Jamul Mountains

USGS Topo · Published 1987

About this map

The San Miguel Mountain range dominates this mid-century landscape of southern San Diego County, situated between the expanding residential hubs of Spring Valley and La Presa. This 1955 survey, updated with 1970s aerial data, reveals a transition from inland ranching to suburban development. The pink-tinted urban extensions around Casa de Oro and Homelands contrast with the rugged canyons of the south, where Rancho del Otay and Fenton Ranch sit near the waters of the Upper Otay Reservoir and Lower Otay Reservoir. Historical landmarks like Bancroft Point and the Steele Canyon Bridge provide concrete reference points for local history. To the west, the sprawling Sweetwater Reservoir is defined by features such as Neal Cove and Gum Tree Cove, while the southern portion of the quadrangle shows the early grounds of Southwestern College. Rural outposts like Jamul and The Oaks School remain isolated in the eastern canyons, still largely connected by routes like Otay Lakes Road.

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Map Details

Date Portrayed1955
Date Published1987
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1955 Jamul Mountains Map

Historical Maps of San Diego Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain