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1940 Map of Mescal Creek

Name: 1940 Topographic Map of Mescal Creek
Creator: U.S. Geological Survey
Published: 1949
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1949

About this map

The San Andreas Rift Zone creates a distinct geological boundary across this landscape, where the flat expanse of the Antelope Valley meets the rising elevations of the San Gabriel Mountains. This mid-century survey, updated in 1948 by Los Angeles County engineer C.E. Arnold, captures a transition from desert floor to the Angeles National Forest.

Settlement patterns follow the reliable water sources found at Hagenbaugh Ranch and along the Pear Blossom Highway. The map traces early transportation routes including the Fort Tejon Road and the Llano Cutoff, alongside family-named holdings like Soules Ranch. Geologic features dominate the southern portion, with high-elevation points such as John Flat and Ball Flat marking the terrain above Graham Canyon.