Loudoun Quarries
From Underfoot
Q49427871
mine in Loudoun County, Virginia, United States of America
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Location: 38.9739, -77.4219, KML, Cluster Map, Maps,
2 places
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File:Seneca Stone Cutting Mill.jpg Seneca Quarry ⓘ
historical Seneca red sandstone quarry in Montgomery County, Maryland, United States
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File:DalecarliaTunnel.JPG Dalecarlia Tunnel ⓘ
former railroad tunnel that carries the Capital Crescent Trail in Brookmont, Maryland
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| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|
| site | mine | 1785 | Seneca Quarry | quarry | Wikidata |
| site | tunnel | 1910 | Dalecarlia Tunnel | railway tunnel | Wikidata |