Number 1 Mine
From Underfoot
Q49437274
Q49437274
mine in Garrett County, Maryland, United States of America
| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|
| site | tunnel | Big Savage Tunnel | cycling tunnel, pedestrian tunnel, railway tunnel | Wikidata | |
| site | tunnel | Borden Tunnel | railway tunnel, pedestrian tunnel | Wikidata | |
| site | tunnel | Hoffman tunnel | water tunnel | Wikidata | |

