Latitude: 37°56'51"N
Longitude: 122°25'12"W
A former stone quarry/pit operation located 0.1 km (400 feet) NE of Point Molate (coordinates of record) and 3.8 km (2.4 miles) NW of Point Richmond.
References
Davis, Fenelon Francis & J.W. Vernon (1951), Mines and mineral resources of Contra Costa County, California: California Journal of Mines and Geology (Report 47): 47(4): 561-618: Pl. 42.
California Journal of Mines and Geology (1958) (Report 54): 54(4): 578, Pl. 5.
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