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1972 Map of Bighorn Canyon

Name: 1972 Topographic Map of Bighorn Canyon
Creator: U.S. Geological Survey
Published: 1975
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1975

About this map

Johnson Valley provides a clear look at the high desert interface between organized road grids and the rising foothills of the Bighorn Mountains in the early 1970s. The northern portion of the map shows an emerging network of planned residential streets with botanical names like Joshua Tree Avenue, Manzanita Ave, and Quailbush Avenue. This geometry dissolves into the winding topography of the south, where Bighorn Canyon and Ruby Canyon dominate the landscape.

Isolated outposts such as Rock Corral and Parsons Ranch suggest a sparse human footprint centered on water management, evidenced by several Cistern and Well markings. The presence of a Landing Field and a Landing Strip in this open terrain highlights the importance of light aircraft for accessibility in San Bernardino County during this era. Traceable Jeep Trails connect these remote points, reflecting the region's long-standing use for both utilitarian ranching and early motorized exploration.