Eastern Mojave Vegetation Open pit at Hart.  
 

 

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  California, San Bernardino County, Hart
Photographed April 1980, scanned from a print on 5 March 2018.

From time to time since 1929, the Standard Sanitary Manufacturing Co. has explored a deposit of clay half a mile south of the Hart Consolidated mine (no. 129, pl. 2) on the south end of a ridge that extends south from Castle Mountains. in 1929, there was a tunnel 200 feet long from which a large chamber to the surface has been opened. It has recently been mined. The nearly pure white clay represents rhyolite tuff in the section of flows and tuffs of middle Tertiary age that have been altered by hydrothermal action (Hewett, 1956, pg. 163).

Location records that use this photograph:

    Hart, San Bernardino County, California

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Other photos about Geography - Eastern Mojave or Hart.

 


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Date and time this page was prepared: 10/20/2019 10:08:25 AM