Amador Columbia Mine
From Underfoot
Q49396767
mine in Calaveras County, California, United States of America
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Location: 38.4144, -120.5681, KML, Cluster Map, Maps,
2 places
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Black Chasm Cavern ⓘ
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California Caverns ⓘ
cave in United States of America
| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|
| site | cave | Black Chasm Cavern | cave | Wikidata | |
| site | cave | California Caverns | show cave, cave | Wikidata | |