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1981 Map of Point Arena

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

USGS Topo · Published 1981

About this map

The San Andreas Rift Zone dictates the dramatic geography of this coastline, running parallel to the shore from Arena Cove south past the Gualala River. In the early 1980s, the landscape is defined by the proximity of the Pacific Ocean to the high ridges of the Coast Range, including Signal Ridge and Buck Ridge. The map documents a significant engineering change in the interior with the presence of the Warm Springs Dam and the resulting Lake Sonoma, altering the local hydrology near the Russian River basin.

Defense and maritime safety are anchored by the Point Arena Air Force Station and the historic Lighthouse at Point Arena. Regional history is preserved in a dense network of public lands, from the coastal Fort Ross State Historic Park to the deep timber of the Armstrong Redwoods State Reserve. This era shows the primary settlements of Gualala, Cloverdale, and Manchester connected by the winding path of Route 1.