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1954 Map of Mt. Baldy

Name: 1954 Topographic Map of Mt. Baldy
Creator: U.S. Geological Survey
Published: 1960
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1960

About this map

The San Gabriel Mountains dominate this mid-century survey, showcasing the dramatic transition from high-elevation forest to the citrus-growing outskirts of the eastern Los Angeles Basin. At the foot of San Antonio Canyon, the residential grid of Upland and Cucamonga begins to push northward into the alluvial fans, marked by the developing community of San Antonio Heights and local landmarks like the Community Church. Higher in the canyon, the settlement of Mt Baldy serves as a gateway to the rugged interior, surrounded by the Angeles National Forest and San Bernardino National Forest.

Resource management and fire prevention infrastructure are prominent across the landscape, including the San Antonio Fire Control Sta, the Sunset Pk Lookout, and the Lower San Antonio Guard Sta. Cultural sites such as Scudder Oaks School and the 18th Street School are clearly documented, along with more isolated outposts like Thompson Ranch. The map also captures the San Dimas Experimental Forest, reflecting the era's focus on watershed and forest research.