North Keystone Mine

mine in Calaveras County, California, United States of America

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Wikidata
mine, United States, 

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Location: 37.9875, -120.65, KML, Cluster Map, Maps,
3 places

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• File:California Caverns.jpg

  California Caverns ⓘ
  cave in United States of America

• File:California-Murphys-Mercer cave1.jpg

  Mercer Caverns ⓘ
  cave in United States of America

• 

  Moaning Cavern ⓘ
  solutional cave in the Calaveras County, California

Type	Subtype	Date	Description	Notes	Source
site	cave		California Caverns	show cave, cave	Wikidata
site	cave		Mercer Caverns	show cave, cave	Wikidata
site	cave		Moaning Cavern	show cave, cave	Wikidata