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1939 Map of Boneyard Canyon

Name: 1939 Topographic Map of Boneyard Canyon
Creator: U.S. Geological Survey
Published: 1939
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1939

About this map

The Los Angeles Co San Bernardino Co border runs directly through this 1930s survey, marking the transition from the high desert floor of the Antelope Valley into the steep northern slopes of the San Gabriel Mountains. This landscape is defined by the dramatic ascent from the arid basin into the protected lands of the Angeles National Forest, where deep drainages like Boneyard Canyon and Puzzle Canyon carve into the mountain front.

Transportation patterns reflect the region's role as a vital corridor between the desert and the coast. The Fort Tejon Road and Cajon Lancaster Road intersect near the base of the mountains, tracing routes that served early travelers and settlers long before modern highway systems were established. Infrastructure for water management is visible at a small Reservoir near Mescal Creek, highlighting the critical importance of water resources in this dry environment.