Images for the building Holt and Gregg Company, Limestone Quarry and Kilns, Big Backbone Canyon, Shasta County, CA

click to open gallery Map of Limestone Quarries and Kilns, Shasta County, CA, 1906; from The Structural and Industrial Materials of California, Bulletin No. 38, California, State Mining Bureau, San Francisco, California, 1906, reproduced by quarriesandbeyond.org
Pacific Coast Architecture Database (PCAD) — © 2005-Alan Michelson

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