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1958 Map of Clearlake Oaks

Name: 1958 Topographic Map of Clearlake Oaks
Creator: U.S. Geological Survey
Published: 1967
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1967

About this map

Clear Lake dominates the southern portion of this map, its shoreline marked by the established waterfront community of Clearlake Oaks and the nearby Glenhaven. The landscape shifts from the bustling shoreline at The Narrows to the industrial and cultural landmarks at Sulphur Bank Point. Notable for local history is the Sulphur Bank Rancheria and the adjacent Sulphur Bank Mine, reflecting the complex layering of Indigenous presence and early mercury mining in Lake County.

Moving north, the terrain rises sharply into the High Valley and the Mendocino National Forest, where isolated outposts like Garner Ranch and Kennedy Ranch sit along the winding Long Valley Creek. The presence of the East Lake Sch and numerous named islands, including Rattlesnake Island and Weekend Island, illustrates a mid-century period when the lake's recreational identity was fully formed while legacy ranching and mining operations still defined the backcountry hills.