Blake Brothers Quarry (San Pablo), Point Richmond (The Point), Richmond, Contra Costa Co., California, USA
A crushed stone quarry located 2.0 km (6,500 feet) NW of Point Richmond.
ReferencesDavis, 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): 585-586.
California Journal of Mines and Geology (1958) (Report 54): 54(4): 550-551, 575, Pl. 5.
California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103.
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Locality Updated: Ciapa Liscia, Piacenza Province, Emilia-Romagna, ItalyFrom Bruno Marello, 10th Dec 2013 10:45:58