Stoneyhurst Quarry Number 3

mine in Montgomery County, Maryland, United States of America

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Wikidata
mine, Q30, 

​ ​ ​ ​ ​ ​ ​ ​

Location: 38.9928, -77.1603, KML, Cluster Map, Maps,
6 places

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• 

  Presidential Emergency Operations Center ⓘ
  multilevel bunker-like structures underneath the East Wing and North Lawn of the White House

• 

  Seneca Quarry ⓘ
  historical Seneca red sandstone quarry in Montgomery County, Maryland, United States

• 

  First Street Tunnel ⓘ
  Rail tunnel in Washington, DC

• 

  White House to Treasury Building tunnel ⓘ
  Tunnel between the White House and the Treasury Building

• 

  Virginia Avenue Tunnel ⓘ
  railway tunnel in Washington, D.C., United States

• 

  Dalecarlia Tunnel ⓘ
  former railroad tunnel that carries the Capital Crescent Trail in Brookmont, Maryland

1941-01-01T00:00:00Z

1941-01-01T00:00:00Z

1941 Presidential Emergency Operations Center

1785-01-01T00:00:00Z

1785-01-01T00:00:00Z

1785 Seneca Quarry

1872-01-01T00:00:00Z

1872-01-01T00:00:00Z

1872 Virginia Avenue Tunnel

1910-01-01T00:00:00Z

1910-01-01T00:00:00Z

1910 Dalecarlia Tunnel

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Type	Subtype	Date	Description	Notes	Source
organisation	government department	1910	United States Bureau of Mines	mining, government agency, mining safety	Wikidata
site	bunker	1941	Presidential Emergency Operations Center	underground infrastructure system, bunker	Wikidata
site	mine	1785	Seneca Quarry	quarry	Wikidata
site	tunnel		First Street Tunnel	railway tunnel	Wikidata
site	tunnel		White House to Treasury Building tunnel	White House Military Office, tunnel	Wikidata
site	tunnel	1872	Virginia Avenue Tunnel	CSX Transportation, railway tunnel	Wikidata
site	tunnel	1910	Dalecarlia Tunnel	railway tunnel	Wikidata