Old Mackinac Point Lighthouse
E29596
Old Mackinac Point Lighthouse is a historic navigational beacon and museum located at the northern tip of Michigan’s Lower Peninsula, overlooking the Mackinac Bridge and the Straits of Mackinac.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Old Mackinac Point Lighthouse canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T230691 — 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: Old Mackinac Point Lighthouse Context triple: [Straits of Mackinac, hasNearbyLandmark, Old Mackinac Point Lighthouse]
-
A.
Great Point Light
Great Point Light is a historic lighthouse located at the northern tip of Nantucket Island, Massachusetts, guiding vessels through the surrounding coastal waters.
-
B.
Big Red Lighthouse
Big Red Lighthouse is a historic, bright-red navigational beacon at the channel entrance to Lake Michigan in Holland, Michigan, and a well-known local icon.
-
C.
Sankaty Head Light
Sankaty Head Light is a historic lighthouse on the eastern shore of Nantucket, Massachusetts, known for guiding ships along the treacherous waters off the island since the mid-19th century.
-
D.
Point Sur Lighthouse
Point Sur Lighthouse is a historic 19th-century light station perched on a volcanic rock along California’s Big Sur coast, guiding ships along the rugged Pacific shoreline.
-
E.
Cape May Lighthouse
Cape May Lighthouse is a historic 19th-century coastal beacon and popular tourist attraction located at the southern tip of New Jersey.
- 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: Old Mackinac Point Lighthouse Target entity description: Old Mackinac Point Lighthouse is a historic navigational beacon and museum located at the northern tip of Michigan’s Lower Peninsula, overlooking the Mackinac Bridge and the Straits of Mackinac.
-
A.
Great Point Light
Great Point Light is a historic lighthouse located at the northern tip of Nantucket Island, Massachusetts, guiding vessels through the surrounding coastal waters.
-
B.
Big Red Lighthouse
Big Red Lighthouse is a historic, bright-red navigational beacon at the channel entrance to Lake Michigan in Holland, Michigan, and a well-known local icon.
-
C.
Sankaty Head Light
Sankaty Head Light is a historic lighthouse on the eastern shore of Nantucket, Massachusetts, known for guiding ships along the treacherous waters off the island since the mid-19th century.
-
D.
Point Sur Lighthouse
Point Sur Lighthouse is a historic 19th-century light station perched on a volcanic rock along California’s Big Sur coast, guiding ships along the rugged Pacific shoreline.
-
E.
Cape May Lighthouse
Cape May Lighthouse is a historic 19th-century coastal beacon and popular tourist attraction located at the southern tip of New Jersey.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
lighthouse ⓘ museum ⓘ navigational aid ⓘ |
| architecturalStyle | Romanesque Revival-influenced brick design ⓘ |
| associatedWith | Mackinac Bridge ⓘ |
| bodyOfWater | Straits of Mackinac ⓘ |
| constructionEndYear | 1892 ⓘ |
| constructionStartYear | 1889 ⓘ |
| coordinates | approximately 45.787°N 84.727°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| deactivated | 1957 ⓘ |
| focalHeight | approximately 62 feet ⓘ |
| function | guided ships through the Straits of Mackinac ⓘ |
| hasExhibit |
Great Lakes shipping history
ⓘ
lighthouse keepers’ life ⓘ |
| hasFeature |
barn
ⓘ
brick tower ⓘ fog signal building ⓘ keeper’s dwelling ⓘ oil house ⓘ |
| hasTour | guided tower climbs ⓘ |
| height | approximately 50 feet ⓘ |
| lightCharacteristic | fixed white ⓘ |
| listedOn | National Register of Historic Places ⓘ |
| locatedIn |
Emmet County, Michigan
ⓘ
Michigan (most of state) ⓘ
surface form:
Michigan
United States of America ⓘ
surface form:
United States
|
| locatedWithin | Straits of Mackinac area ⓘ |
| location | Mackinaw City, Michigan ⓘ |
| managingOrganization | Mackinac State Historic Parks ⓘ |
| material | cream brick ⓘ |
| nearestCity |
Mackinaw City, Michigan
ⓘ
surface form:
Mackinaw City
|
| NRHPListingYear | 1969 ⓘ |
| NRHPType | contributing property ⓘ |
| openToPublic | yes ⓘ |
| operatorHistory |
United States Coast Guard
ⓘ
United States Lighthouse Service ⓘ |
| originalLens |
Fresnel lens
ⓘ
surface form:
Fourth-order Fresnel lens
|
| overlooks |
Mackinac Bridge
ⓘ
Straits of Mackinac ⓘ |
| ownedBy |
Michigan (most of state)
ⓘ
surface form:
State of Michigan
|
| partOf |
Mackinac Bridge Historic District
ⓘ
Mackinac State Historic Parks ⓘ
surface form:
Mackinac State Historic Parks system
|
| region | Great Lakes ⓘ |
| situatedAt | northern tip of Michigan’s Lower Peninsula ⓘ |
| towerShape | cylindrical tower with balcony and lantern ⓘ |
| usedAs | maritime museum ⓘ |
| yearLit | 1892 ⓘ |
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: Old Mackinac Point Lighthouse Description of subject: Old Mackinac Point Lighthouse is a historic navigational beacon and museum located at the northern tip of Michigan’s Lower Peninsula, overlooking the Mackinac Bridge and the Straits of Mackinac.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.