Mineral Resource Map
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Mine detail: Basalt Rock Company
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North America
United States
California
Contra Costa
Previously called ''
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Location
Lat / long:
38.01518, -121.79354
Resource(N)
Primary:
Sand and Gravel, Construction
Ore:
Sand
Production
Operation type:
Unknown
Production size:
None
Development status:
Occurrence
Geology
References
MRDS
M007177
DEP
10029557
Reference
CALIF. JOUR. VOL. 47, NO. 4, OCT. 1951, P. 580; V. 54, NO. 4, P. 57
Reporter
Gere, W.