Statements (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
iron ore mine
|
| gptkbp:associatedWith |
Lake_Superior_Iron_Range
|
| gptkbp:depth |
1,200 feet
|
| gptkbp:environmentalImpact |
land disturbance
|
| https://www.w3.org/2000/01/rdf-schema#label |
Tilden Mine
|
| gptkbp:location |
gptkb:Michigan
|
| gptkbp:operatedBy |
gptkb:Cliffs_Natural_Resources
|
| gptkbp:productionCompany |
open-pit mining
taconite |
| gptkbp:releaseYear |
1974
|
| gptkbp:revenue |
8 million tons
|