In 1913 a borate mining claim was registered by O. Suckow, following identification of colemanite nodules during well drilling in the Kramer area of Kern Co. California.
This discovery claim was later bought out by the Pacific Coast Borax Company, whose subsequent exploration drilling in the district discovered the Na-borate deposit in 1925.
Their first exploitation was underground, via the shaft known as the Baker mine, which lies near the eastern end of the Na borate orebody. During 1926 & '27, two other companies, Suckow Borax Mines and the Western Borax Co., began working further west in the deposit. Both of these operations were taken over within the next few years by Pacific Coast Borax [Western Borax in 1933].
In the late 1940's the former Western Borax property was bought by the California Borate Co. which since seems to have faded from the scene, although I can find no reference to it's demise. In 1956 Pacific Coast Borax merged with United States Potash Corporation, to become US Borax, and in 1957 changed from underground to opencast working.
The Jennifer Mine was a shaft located about halfway between the Western Borax and Suckow Borax mines, and is now included within the US Borax property. In 1968 US Borax became part of the Rio Tinto Group.
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Map Reference: 35°2'40"N , 117°41'40"W
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Mineral List:16 entries listed. 16 valid minerals.
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