Butler Stone Quarry
From Underfoot
Q34970786
mine in Baltimore County, Maryland, United States of America
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Location: 39.5417, -76.7281, KML, Cluster Map, Maps,
4 places
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Cross Ore Bank ⓘ
abandoned mine in Baltimore County, Maryland, United States of America -

Baltimore and Potomac Tunnel ⓘ
railroad tunnel in Maryland, a bottleneck of the Northeast Corridor -
Henryton Tunnel ⓘ
railway tunnel in Henryton, Maryland -

Union Tunnel (Baltimore) ⓘ
underpass on the Northeast Corridor
| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|
| site | mine | Cross Ore Bank | abandoned mine | Wikidata | |
| site | tunnel | Baltimore and Potomac Tunnel | railway tunnel | Wikidata | |
| site | tunnel | Henryton Tunnel | railway tunnel | Wikidata | |
| site | tunnel | Union Tunnel (Baltimore) | railway tunnel | Wikidata | |