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1991 Map of Val Verde

Name: 1991 Topographic Map of Val Verde
Creator: U.S. Geological Survey
Published: 1995
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1995

About this map

Oil production dominates the landscape of this northwestern corner of Los Angeles County, where industrial infrastructure meets the steep canyons of the Santa Susana Mountains. The terrain is marked by extensive energy operations, including the Ramona Oil Field, the Oak Canyon Oil Field, and the Newhall Potrero Oil Field, all defined by numerous oil wells and sumps scattered across the hillsides. Settlement is concentrated in the small community of Val Verde and scattered family operations such as Hathaway Ranch and Stanley Ranch.

Water management and transportation follow the natural drainage of the Santa Clara River and Castaic Creek. At the western edge, the Santa Felicia Dam contains the waters of Lake Piru, while the Mayo Spur railroad line and Telegraph Road provide vital transit links through the river valley. The map also captures the boundary between Los Angeles and Ventura counties as it traverses rugged ridges and deep canyons like Lechler Canyon and San Martinez Grande Canyon.