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1949 Map of Cosio Knob

Name: 1949 Topographic Map of Cosio Knob
Creator: U.S. Geological Survey
Published: 1953
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1953

About this map

The San Antonio Mission stands as a focal point in this 1949 survey of the Monterey County interior, situated near the confluence of the San Antonio River and Mission Creek. The landscape is dominated by the Hunter Liggett Military Reservation, which encompasses much of the territory including the Oat Hills and the prominent Cosio Knob. This era of the reservation is marked by infrastructure such as a small Airfield and an extensive network of fire roads and trails like Argyle Rd and Jolon Road.

A network of seasonal watercourses, including Quinado Canyon, Mansfield Canyon, and Kirk Canyon, carve through the complex terrain. The map records several notable landmarks for local historians, from the site of Ruins along Jolon Creek to various isolated Windmill sites that once supported ranching in the Valley before military expansion. The inclusion of a Telephone Line and primitive routes like Bel Venturi Road provides a clear view of the mid-century communication and transportation corridors in this corner of the California coast range.