Silica Sand Mine

mine in Pennington County, South Dakota, United States of America

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Wikidata
mine, United States, 

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Location: 43.9772, -103.8481, KML, Cluster Map, Maps,
3 places

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• File:Inside Jewel Cave National Monument - (15096023561).jpg

  Jewel Cave ⓘ
  cave in South Dakota, in the United States

• 

  Hood Tunnel ⓘ
  Tunnel in Custer County, South Dakota

• File:Needles Eye Tunnel.jpg

  Unknown ⓘ
  Tunnel in Custer County, South Dakota

Type	Subtype	Date	Description	Notes	Source
site	cave		Jewel Cave	National Park Service, show cave	Wikidata
site	tunnel		Hood Tunnel	road tunnel	Wikidata
site	tunnel		Unknown	road tunnel	Wikidata