Knowles
OccurrenceSurfaceUSGS MRDS
Location
| State | Washington |
| County | Grays Harbor |
| Coordinates | 47.42309, -123.64816 |
Commodities
| Tertiary | Manganese |
Mine Details
| Status | Occurrence |
| Type | Surface |
| Discovery Year | 1956 |
| Data Source | USGS MRDS |
| Source ID | 10277064 |
| State | Washington |
| County | Grays Harbor |
| Coordinates | 47.42309, -123.64816 |
| Tertiary | Manganese |
| Status | Occurrence |
| Type | Surface |
| Discovery Year | 1956 |
| Data Source | USGS MRDS |
| Source ID | 10277064 |