Lake Superior copper district
E884940
The Lake Superior copper district is a historically significant mining region around Lake Superior, especially in Michigan’s Upper Peninsula, known for its extensive native copper deposits and long-standing copper production.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Superior copper district canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10773510 — 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: Lake Superior copper district Context triple: [Calumet Unit, associatedWith, Lake Superior copper district]
-
A.
Marquette Iron Range
The Marquette Iron Range is a major iron ore mining district in Michigan's Upper Peninsula that historically served as one of the United States' most important sources of iron.
-
B.
Menominee Iron Range
The Menominee Iron Range is a major iron ore mining district in Michigan’s Upper Peninsula that historically supported towns like Iron Mountain and contributed significantly to the region’s industrial development.
-
C.
Rochester mining district
The Rochester mining district is a historic and active silver and gold mining area in Pershing County, Nevada, known for significant precious metal production since the late 19th century.
-
D.
Iron Range
Iron Range is a rugged, mineral-rich mountainous area in far north Queensland, Australia, known for its unique biodiversity and historical mining activity.
-
E.
Iron Range
The Iron Range is a region in northern Minnesota known for its rich iron ore deposits and long history of mining and industrial development.
- 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: Lake Superior copper district Target entity description: The Lake Superior copper district is a historically significant mining region around Lake Superior, especially in Michigan’s Upper Peninsula, known for its extensive native copper deposits and long-standing copper production.
-
A.
Marquette Iron Range
The Marquette Iron Range is a major iron ore mining district in Michigan's Upper Peninsula that historically served as one of the United States' most important sources of iron.
-
B.
Menominee Iron Range
The Menominee Iron Range is a major iron ore mining district in Michigan’s Upper Peninsula that historically supported towns like Iron Mountain and contributed significantly to the region’s industrial development.
-
C.
Rochester mining district
The Rochester mining district is a historic and active silver and gold mining area in Pershing County, Nevada, known for significant precious metal production since the late 19th century.
-
D.
Iron Range
Iron Range is a rugged, mineral-rich mountainous area in far north Queensland, Australia, known for its unique biodiversity and historical mining activity.
-
E.
Iron Range
The Iron Range is a region in northern Minnesota known for its rich iron ore deposits and long history of mining and industrial development.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
historic region
ⓘ
mining district ⓘ |
| associatedWith | Keweenaw National Historical Park NERFINISHED ⓘ |
| commodity | copper ⓘ |
| contains |
Copper Range
NERFINISHED
ⓘ
Houghton County mining area NERFINISHED ⓘ Isle Royale NERFINISHED ⓘ Keweenaw County mining area NERFINISHED ⓘ Keweenaw Peninsula NERFINISHED ⓘ Keweenaw copper district NERFINISHED ⓘ Ontonagon County mining area NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| currentUse |
geologic research
ⓘ
heritage tourism ⓘ |
| earliestIndustrialMining | 1840s ⓘ |
| economicActivity | hard‑rock mining ⓘ |
| extendsTo |
Michigan
NERFINISHED
ⓘ
Minnesota NERFINISHED ⓘ Ontario NERFINISHED ⓘ Wisconsin NERFINISHED ⓘ |
| geologicFeature |
basaltic lava flows
ⓘ
conglomerate beds ⓘ |
| geologicSetting | Midcontinent Rift System NERFINISHED ⓘ |
| historicPeriod |
19th century
ⓘ
20th century ⓘ |
| knownFor |
copper mining
ⓘ
historic copper production ⓘ native copper deposits ⓘ |
| locatedIn |
Lake Superior region
NERFINISHED
ⓘ
United States of America ⓘ
surface form:
United States
Upper Peninsula of Michigan ⓘ |
| majorTown |
Calumet, Michigan
NERFINISHED
ⓘ
Hancock, Michigan NERFINISHED ⓘ Houghton, Michigan NERFINISHED ⓘ Ontonagon, Michigan NERFINISHED ⓘ |
| mineralResource | copper ⓘ |
| modernStatus | largely inactive mining region ⓘ |
| notableMine |
Adventure Mine
NERFINISHED
ⓘ
Calumet & Hecla Mine NERFINISHED ⓘ Cliff Mine NERFINISHED ⓘ Copper Range mines NERFINISHED ⓘ Pewabic Mine NERFINISHED ⓘ Quincy Mine NERFINISHED ⓘ |
| oreType | native copper ⓘ |
| partOf | Great Lakes region NERFINISHED ⓘ |
| peakProductionCentury |
19th century
ⓘ
early 20th century ⓘ |
| prehistoricUse | Indigenous copper working ⓘ |
| significance | one of the world’s major native copper districts ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Lake Superior copper district Description of subject: The Lake Superior copper district is a historically significant mining region around Lake Superior, especially in Michigan’s Upper Peninsula, known for its extensive native copper deposits and long-standing copper production.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.