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1949 Map of Triunfo Pass

Name: 1949 Topographic Map of Triunfo Pass
Creator: U.S. Geological Survey
Published: 1962
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1962

About this map

The Santa Monica Mountains meet the coast in this 1940s topography, revealing a rugged stretch of Ventura and Los Angeles Counties before extensive modern development. The Roosevelt Highway tracks the shoreline at the base of steep canyons, including Big Sycamore Can and Nicholas Canyon, while the inland heights are accessible via the Mulholland Highway. Small outposts like Solromar and localized landmarks such as the Yerba Buena Sch and Decker Sch provide a glimpse into the rural character of the region during this period.

Prominent peaks and fire safety infrastructure define the high ridges, notably Sandstone Pk and the Triunfo Lookout. The map clearly delineates the San Bernardino Base Line and the county boundary, which separates the drainage of Sequit Canyon from the eastern peaks near Barney Knob and the Lachusa Fire Patrol Sta. Landmarks like Bass Rock and Sequit Point anchor the coastline, marking the interface between the Pacific Ocean and the coastal range.