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1981 Map of Santa Catalina Island

Name: 1981 Topographic Map of Santa Catalina Island
Creator: U.S. Geological Survey
Published: 1981
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1981

About this map

Santa Catalina Island and the northern tip of San Clemente Island dominate this 1981 maritime and topographic study, which highlights the rugged interior and essential harbors of the Channel Islands. The map documents the primary settlement at Avalon and the narrower isthmus at Two Harbors, where Isthmus Cove and Catalina Harbor nearly meet. Inland, the terrain rises to notable peaks such as Mt Orizaba and Black Jack Mtn, while the southern island features the high-security Naval Ocean Systems Center San Clemente Island Facility.

Resource extraction and transportation infrastructure are clearly marked, including the Renton Mine near the southeastern coast and the centrally located Catalina Airport. This edition is particularly distinctive for including Bureau of Land Management offshore protraction survey data, such as Protraction Diagram 6B, which overlays the surrounding waters of the San Pedro Channel and Santa Barbara Passage.