Mine detail: Phillips

Previously called 'Grand View, White Rock'

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Location

Lat / long:

39.14457, -122.98139

Resource(M)

Tertiary:	Manganese, Silica
Other material:	Chert, Psilomelane, Pyrolusite
Discovery year:	1917

Production

Operation type:	Surface
Development status:	Past Producer
First production started:	1918

Geology

References

MRDS	M009035
MAS	60330024
DEP	10212429
Reference	{Deposit:: CDMG BULL 152,1950}{Deposit:: USGS FILE OF 1918}{Deposit:: USBM.R.I. 5579,1960}
Reporter	Deino, Al