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1969 Map of North Chalone Peak

Name: 1969 Topographic Map of North Chalone Peak
Creator: U.S. Geological Survey
Published: 1984
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1984

About this map

Pinnacles National Monument dominates this segment of the Gabilan Range, showcasing a landscape shaped by volcanic activity and tectonic shifts along the San Benito and Monterey County border. The map documents the intricate network of canyons and peaks that define this wilderness, including the massive Machete Ridge and the volcanic spires of The Fingers. Water management and recreational infrastructure are evident through features like the Bear Gulch Reservoir and several campgrounds such as Chalone Creek Campground.

In the southern reaches, the topography shifts toward the historical boundaries of the San Lorenzo (Sanchez) Grant, where the Southern Pacific railroad follows the lowlands near the settlement of Hanley. From the high elevations of North Chalone Peak to the caves and chambers like Fern Chamber, the map provides a look at a region where early 20th-century conservation and transportation networks meet.