Hilltop
Past ProducerCalciumSurfaceUSGS MRDS
Location
| State | California |
| County | San Mateo |
| Coordinates | 37.51271, -122.37775 |
Commodities
| Primary | Calcium |
Mine Details
| Status | Past Producer |
| Type | Surface |
| Data Source | USGS MRDS |
| Source ID | 10116857 |
| State | California |
| County | San Mateo |
| Coordinates | 37.51271, -122.37775 |
| Primary | Calcium |
| Status | Past Producer |
| Type | Surface |
| Data Source | USGS MRDS |
| Source ID | 10116857 |