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1941 Map of Devore

Name: 1941 Topographic Map of Devore
Creator: U.S. Geological Survey
Published: 1941
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1941

About this map

Cajon Canyon serves as a critical transportation corridor on this 1941 edition, where the Atchison Topeka and Santa Fe Railroad and the Union Pacific Railroad converge near the small settlement of Devore. This area marks a significant geographic junction between the San Gabriel Mountains and the San Bernardino Mountains, shaped by the shifting waters of Lytle Creek and the Muscupiabe Wash.

Evidence of early 20th-century infrastructure is prominent, including the Fontana Power Plant, the Glenn Helen Infirmary, and several water management features like Weir No 1. The map also captures the grid development along Highland Avenue and the presence of the Fontana Airport before the post-war suburban expansion transformed the regional landscape. Local landmarks such as Cajon Sch and Tokay Hill provide specific points of interest for genealogical and topographical study.