California · Contra Costa County
Occurrence
Tunnel Rock
Contra Costa County, California, United States
Stone
Crushed/Broken
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USGS source ↗
Commodities
Primary
Stone, Crushed/Broken
Commodity type
N
Deposit
Deposit size
N
Economic & production
Development status
Occurrence
Identification
Deposit ID
10029585
MRDS ID
M007230
Region
NA
Data score
D
Coordinates
37.85962, -122.19994
References
CALIF. JOUR. MINES & GEOL. V. 54, NO. 4, OCT. 1958, PP. 552-3, 578, PL.