Statements (14)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:cryptocurrency
|
| gptkbp:country |
gptkb:United_States
|
| https://www.w3.org/2000/01/rdf-schema#label |
Portland Mine
|
| gptkbp:locatedIn |
gptkb:Colorado
gptkb:Leadville_mining_district gptkb:Lake_County |
| gptkbp:notableFor |
one of the richest gold mines in Colorado
|
| gptkbp:opened |
late 19th century
|
| gptkbp:produces |
gptkb:gold
gptkb:lead silver zinc |
| gptkbp:bfsParent |
gptkb:Cripple_Creek_Gold_Rush
|
| gptkbp:bfsLayer |
7
|