Helen May
UnknownCopperUndergroundUSGS MRDS
Location
| State | Washington |
| County | Snohomish |
| Coordinates | 47.94121, -121.44561 |
Commodities
| Primary | Copper |
Mine Details
| Status | Unknown |
| Type | Underground |
| Data Source | USGS MRDS |
| Source ID | 10253710 |
| State | Washington |
| County | Snohomish |
| Coordinates | 47.94121, -121.44561 |
| Primary | Copper |
| Status | Unknown |
| Type | Underground |
| Data Source | USGS MRDS |
| Source ID | 10253710 |