Copper Harbor Lighthouse
E884949
Copper Harbor Lighthouse is a historic 19th-century navigational beacon located at the tip of Michigan’s Keweenaw Peninsula on Lake Superior.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Copper Harbor Lighthouse canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T10773848 — 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: Copper Harbor Lighthouse Context triple: [Fort Wilkins Historic State Park, nearbyPlace, Copper Harbor Lighthouse]
-
A.
Marquette Harbor Lighthouse
Marquette Harbor Lighthouse is a historic red-brick navigational beacon on Lake Superior that has guided ships into Marquette, Michigan’s harbor since the 19th century.
-
B.
Put-in-Bay Lighthouse
Put-in-Bay Lighthouse is a historic navigational beacon located on South Bass Island in Lake Erie, serving as a notable maritime landmark for the village of Put-in-Bay, Ohio.
-
C.
Big Bay Point Lighthouse
Big Bay Point Lighthouse is a historic, still-operating lighthouse and bed-and-breakfast perched on a bluff overlooking Lake Superior near Big Bay, Michigan.
-
D.
Manitowaning Lighthouse
Manitowaning Lighthouse is a historic navigational beacon on Manitoulin Island in Ontario, Canada, that once guided ships on Lake Huron.
-
E.
Grosse Point Lighthouse
Grosse Point Lighthouse is a historic 19th-century lighthouse on the shore of Lake Michigan, notable for guiding ships into the Chicago area and now serving as a preserved landmark and museum.
- 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: Copper Harbor Lighthouse Target entity description: Copper Harbor Lighthouse is a historic 19th-century navigational beacon located at the tip of Michigan’s Keweenaw Peninsula on Lake Superior.
-
A.
Marquette Harbor Lighthouse
Marquette Harbor Lighthouse is a historic red-brick navigational beacon on Lake Superior that has guided ships into Marquette, Michigan’s harbor since the 19th century.
-
B.
Put-in-Bay Lighthouse
Put-in-Bay Lighthouse is a historic navigational beacon located on South Bass Island in Lake Erie, serving as a notable maritime landmark for the village of Put-in-Bay, Ohio.
-
C.
Big Bay Point Lighthouse
Big Bay Point Lighthouse is a historic, still-operating lighthouse and bed-and-breakfast perched on a bluff overlooking Lake Superior near Big Bay, Michigan.
-
D.
Manitowaning Lighthouse
Manitowaning Lighthouse is a historic navigational beacon on Manitoulin Island in Ontario, Canada, that once guided ships on Lake Huron.
-
E.
Grosse Point Lighthouse
Grosse Point Lighthouse is a historic 19th-century lighthouse on the shore of Lake Michigan, notable for guiding ships into the Chicago area and now serving as a preserved landmark and museum.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
lighthouse ⓘ navigational aid ⓘ |
| access | accessible only by boat ⓘ |
| associatedWith |
Great Lakes shipping
ⓘ
copper mining era in Keweenaw Peninsula ⓘ |
| bodyOfWater | Lake Superior ⓘ |
| category |
Lighthouses in Michigan
ⓘ
Lighthouses on the Great Lakes ⓘ Museums in Michigan ⓘ Tourist attractions in Keweenaw County, Michigan ⓘ |
| constructionStartDate | 1848 ⓘ |
| coordinates | approximately 47.473°N 87.868°W ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| county |
Keweenaw County
ⓘ
linked to:
Keweenaw County, Michigan
|
| firstLit | 1849 ⓘ |
| hasFeature | attached keeper’s dwelling ⓘ |
| height | approximately 42 feet ⓘ |
| heritageDesignation |
Michigan State Historic Site
ⓘ
listed on the National Register of Historic Places ⓘ |
| historicalPeriod | 19th century ⓘ |
| inception | 1848 ⓘ |
| lightCharacteristic | flashing white light ⓘ |
| locatedAt | entrance to Copper Harbor ⓘ |
| locatedIn |
Copper Harbor, Michigan
ⓘ
Keweenaw County, Michigan ⓘ Keweenaw Peninsula ⓘ Michigan ⓘ United States ⓘ
linked to:
United States of America
|
| locatedOn | Lake Superior ⓘ |
| managedBy | Fort Wilkins Historic State Park ⓘ |
| marking | red brick tower with white lantern ⓘ |
| material | brick ⓘ |
| near | Fort Wilkins Historic State Park ⓘ |
| operatedBy |
U.S. Coast Guard
ⓘ
linked to:
United States Coast Guard
|
| originalLensType | Fresnel lens ⓘ |
| ownedBy |
U.S. Coast Guard
ⓘ
linked to:
United States Coast Guard
|
| partOf | Great Lakes lighthouse system ⓘ |
| purpose |
to guide ships on Lake Superior
ⓘ
to mark the entrance to Copper Harbor ⓘ |
| region | Upper Peninsula of Michigan ⓘ |
| state |
Michigan
ⓘ
linked to:
Michigan (most of state)
|
| status | active aid to navigation ⓘ |
| towerShape | square tower ⓘ |
| use |
museum
ⓘ
tourist attraction ⓘ |
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: Copper Harbor Lighthouse Description of subject: Copper Harbor Lighthouse is a historic 19th-century navigational beacon located at the tip of Michigan’s Keweenaw Peninsula on Lake Superior.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.