Empire Mine
E1440956
UNEXPLORED
Empire Mine is a historic hard-rock gold mine in Grass Valley, California, that became one of the oldest, largest, and richest gold mines in the state’s history.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Empire Mine canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T20628154 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Empire Mine Context triple: [William Bowers Bourn II, notableWork, Empire Mine]
-
A.
Empire Mine
Empire Mine is a large former iron ore mine in Michigan’s Upper Peninsula that was a major producer on the Marquette Iron Range.
-
B.
Premier Mine
Premier Mine, now known as the Cullinan Diamond Mine in South Africa, is a historically significant diamond mine famed for producing some of the largest and most important gem-quality diamonds in the world.
-
C.
Red Devil Mine
Red Devil Mine is an abandoned mercury mining site in southwestern Alaska known for its historical production and ongoing environmental contamination concerns.
-
D.
Endeavor Mine
Endeavor Mine is a major underground base and precious metal mining operation located near Cobar in New South Wales, Australia.
-
E.
Jackson Mine
Jackson Mine is a historic iron ore mine in Michigan’s Marquette Iron Range that played a key role in the early development of the American iron mining industry.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Empire Mine Target entity description: Empire Mine is a historic hard-rock gold mine in Grass Valley, California, that became one of the oldest, largest, and richest gold mines in the state’s history.
-
A.
Empire Mine
Empire Mine is a large former iron ore mine in Michigan’s Upper Peninsula that was a major producer on the Marquette Iron Range.
-
B.
Premier Mine
Premier Mine, now known as the Cullinan Diamond Mine in South Africa, is a historically significant diamond mine famed for producing some of the largest and most important gem-quality diamonds in the world.
-
C.
Red Devil Mine
Red Devil Mine is an abandoned mercury mining site in southwestern Alaska known for its historical production and ongoing environmental contamination concerns.
-
D.
Endeavor Mine
Endeavor Mine is a major underground base and precious metal mining operation located near Cobar in New South Wales, Australia.
-
E.
Jackson Mine
Jackson Mine is a historic iron ore mine in Michigan’s Marquette Iron Range that played a key role in the early development of the American iron mining industry.
- F. None of above. chosen
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.