Baltic Number One Mine
From Underfoot
Q49398365
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mine in Park County, Colorado, United States of America
| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|
| site | mine | Orphan Boy mine | silver mine, gold mine | Wikidata | |
| site | tunnel | Busk–Ivanhoe Tunnel | railway tunnel | Wikidata | |
| site | tunnel | Hagerman Tunnel | railway tunnel | Wikidata | |