Port Costa, CA Stone Mines
Stone Mines in Port Costa, California
| Mine |
Owner |
Land Status |
Work Type |
Minerals |
| Main Mine & Mill |
|
Unknown |
|
Stone, Crushed |
| Mcnears |
|
|
|
Stone, Dimension |
| Mcnears |
|
Unknown |
|
Stone |
| Port Costa Clay Products Co |
Porta Costa Materials, Inc. |
Unknown |
|
Stone, Crushed |
| Port Costa Clay Products Co. |
|
|
|
Stone |
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