Mines in Milpitas, California
| Mine |
Owner |
Land Status |
Work Type |
Minerals |
| Blackbird |
|
Private |
|
Manganese |
| Calaveras Crushed Rock Quarry |
Gradeway Construction |
Unknown |
|
Stone |
| Calaveras Road Pit |
|
Unknown |
|
Stone, Dimension |
| Curtner Quarry |
Freeman-Sondgroth Constructions Co. |
Unknown |
|
Stone |
| Fredrickson-Wetson |
|
Private |
|
Stone |
| Fredrickson-Wetson |
|
Private |
|
Stone |
| Garden City Pottery Co. |
|
|
|
Clays |
| Garden City Pottery Co. |
|
Unknown |
|
Clays |
| Gravel Pit |
|
Unknown |
|
Sand and Gravel |
| Gravel Pit |
|
Unknown |
|
Sand and Gravel |
| Gravel Pit |
|
Unknown |
|
Sand and Gravel |
| Mateos Ranch |
|
Private |
|
Manganese |
| Mateos Ranch Deposit |
John D Mateos |
|
|
Manganese |
| Miller |
|
Private |
|
Manganese |
| Miller |
|
Private |
|
Manganese |
| Quarry |
|
|
|
Stone |
| Quarry |
|
County |
|
Stone |
| Quarry |
|
Unknown |
|
Stone |
| Roggasch Bros. |
|
Unknown |
|
Stone, Crushed |
| San Jose |
|
|
|
Manganese |
| San Jose |
|
Unknown |
|
Manganese |
| Scott Creek Pit |
|
Unknown |
|
Stone, Dimension |
| Serpa Quarry |
Raisch Paving Co. |
Unknown |
|
Stone, Crushed |
| Stevens Creek Quarry |
|
Unknown |
|
Stone, Dimension |
| Wallace Ranch |
|
Private |
|
Manganese |
| Wallace Ranch |
Mrs Grace P Wallace |
|
|
Manganese |
