National Register of Historic Places Registration Form, Black Diamond Mines / Black Diamond Mines Regional Preserve, Contra Costa County, California
Author(s): Adrian Praetzellis
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Cite this Record
National Register of Historic Places Registration Form, Black Diamond Mines / Black Diamond Mines Regional Preserve, Contra Costa County, California. Adrian Praetzellis. 1991 ( tDAR id: 80924)
min long: -122.442; min lat: 37.719 ; max long: -121.534; max lat: 38.1 ;
NADB document id number(s): 1193591
NADB citation id number(s): 000000161046