Multnomah County, OR Mercury Mines
Mercury Mines in Multnomah County, OR
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Portland Tunnel | City Of Portland | Mercury | ||
| Portland Tunnel | Unknown | Mercury |
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Portland Tunnel | City Of Portland | Mercury | ||
| Portland Tunnel | Unknown | Mercury |