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1969 Map of Hernandez Reservoir

Name: 1969 Topographic Map of Hernandez Reservoir
Creator: U.S. Geological Survey
Published: 1973
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1973

About this map

Hernandez Reservoir and its surrounding canyonlands dominate this 1960s survey, illustrating a remote landscape shaped by water management and mineral extraction. The reservoir's high-water mark, noted by a Spillway Elev 2394, sits at the confluence of the San Benito River and Laguna Cr. Traceable human presence is sparse, marked by isolated outposts such as The Adobe and Harrison Cabin, alongside a network of rugged jeep trails and named springs like Bucks Peak Spring and Red Corral Spring.

Geological activity is a primary feature in the northern reaches, where an Oil Field and various Drill Holes indicate mid-century industrial exploration. The terrain transitions from deep drainages like Johnson Canyon and Cane Canyon to prominent summits including Black Mountain and Tucker Mtn. This map captures a specific moment in San Benito County's history, where the cattle-ranching legacy of the Red Corral meets the technical infrastructure of the Syncline Divide.