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1969 Map of Ciervo Mtn.

Name: 1969 Topographic Map of Ciervo Mtn.
Creator: U.S. Geological Survey
Published: 1972
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1972

About this map

Ciervo Mountain and the prominent Monocline Ridge dominate this late-1960s landscape along the boundary of Fresno and San Benito Counties. This arid, high-elevation terrain is defined by a complex network of seasonal watercourses and remote springs that supported the region's ranching economy. Significant drainage systems such as Arroyo Hondo and Cantua Creek carve through the foothills, while isolated water sources like Borreguero Spring and Harris Spring provided essential stopovers for movement through the hills.

The presence of numerous trails, jeep trails, and scattered water tanks illustrates the practical infrastructure of the mid-century cattle industry. From the low-lying San Carlos Bolsa to the high plateau of Peppergrass Flat, the map documents a transitional zone where the Central Valley meets the interior ranges, captured just before modern agricultural and industrial changes further altered the topography of Fresno County.