Concord, CA Stone Mines
Stone Mines in Concord, California
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Cowell | Unknown | Stone, Dimension | ||
| Harrison-Birdwell - Pacific Cement and Aggregates Co. | Stone | |||
| Martin | Stone, Crushed | |||
| Martin | Unknown | Stone, Crushed | ||
| Mt. Diablo Lime Marl Co. | Limestone | |||
| Scott Pit | Unknown | Stone | ||
| Unnamed | Stone | |||
| Unnamed | Stone | |||
| Unnamed | Stone | |||
| Unnamed Location | Ginochio Brothers | Stone, Crushed |
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