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1956 Map of Baldy Mesa

Name: 1956 Topographic Map of Baldy Mesa
Creator: U.S. Geological Survey
Published: 1969
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1969

About this map

Baldy Mesa dominates the landscape of this High Desert transition zone, where the northern slopes of the San Gabriel Mountains meet the Mojave. The map reveals a land defined by vast alluvial fan drainages like Oro Grande Wash and Manzanita Wash, which cut through the arid terrain. Settlement in the mid-1950s is sparse and rural, characterized by isolated holdings such as Yucca Forest Ranch and Patterson Ranch, likely reflecting the ranching and early agricultural efforts in this challenging environment.

Transportation infrastructure indicates the area's role as a transit corridor. The Southern Pacific railroad tracks sweep across the basin, providing a vital link for heavy freight. To the south, the boundary of the San Bernardino National Forest marks a transition into more protected wilderness. Local movement is facilitated by a network of dirt tracks including Caughlin Road and Oak Hill Road, connecting remote homesteads like White Ranch and Warner Ranch to the primary thoroughfare of Phelan Road.