Sulphur Bank Mine

Lake County · 1.5 miles south of Clearlake Oaks · location approximate

This sulphur mine also produced quicksilver and became one of most noted producers in world. First worked for sulphur in 1865 and in four years produced total of 2,000,000 pounds. Reopened and developed for quicksilver in 1873 and credited with total output of 92,400 flasks. Was important producer World Wars I and II.

1971 register text, presented as a historical document. It uses the period's terms for Native people; the state's landmark listings still carry most of this wording, and the California Office of Historic Preservation maintains the program's current texts.

Many of these plaques have since been recast or their texts revised. The California Historical Landmarks program and its current texts are maintained by the California Office of Historic Preservation. California Office of Historic Preservation ↗

David Rumsey Map Collection, Stanford Libraries

Marker data: State of California, Department of Parks and Recreation, California Historical Landmarks (1971)

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