Au Sable Light Station (nearby)
E685365
Au Sable Light Station is a historic lighthouse complex on Lake Superior in Michigan’s Pictured Rocks National Lakeshore, known for guiding ships along a once-treacherous stretch of coastline.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Au Sable Light Station (nearby) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7739176 — 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: Au Sable Light Station (nearby) Context triple: [Grand Marais, Michigan, hasLighthouse, Au Sable Light Station (nearby)]
-
A.
Manitowaning Lighthouse
Manitowaning Lighthouse is a historic navigational beacon on Manitoulin Island in Ontario, Canada, that once guided ships on Lake Huron.
-
B.
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.
-
C.
Lorain Lighthouse
Lorain Lighthouse is a historic navigational beacon on Lake Erie, known for its distinctive architecture and status as an iconic symbol of Lorain, Ohio.
-
D.
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.
-
E.
Grand Haven lighthouse
The Grand Haven lighthouse is a historic red pierhead light on Lake Michigan in Grand Haven, Michigan, known for its scenic lakeside setting and iconic appearance along the Grand Haven South Pier.
- 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: Au Sable Light Station (nearby) Target entity description: Au Sable Light Station is a historic lighthouse complex on Lake Superior in Michigan’s Pictured Rocks National Lakeshore, known for guiding ships along a once-treacherous stretch of coastline.
-
A.
Manitowaning Lighthouse
Manitowaning Lighthouse is a historic navigational beacon on Manitoulin Island in Ontario, Canada, that once guided ships on Lake Huron.
-
B.
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.
-
C.
Lorain Lighthouse
Lorain Lighthouse is a historic navigational beacon on Lake Erie, known for its distinctive architecture and status as an iconic symbol of Lorain, Ohio.
-
D.
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.
-
E.
Grand Haven lighthouse
The Grand Haven lighthouse is a historic red pierhead light on Lake Michigan in Grand Haven, Michigan, known for its scenic lakeside setting and iconic appearance along the Grand Haven South Pier.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
lighthouse complex ⓘ navigational aid ⓘ |
| access | hiking trail from Hurricane River campground ⓘ |
| architecturalStyle | late 19th-century brick lighthouse design ⓘ |
| associatedWith |
Pictured Rocks cliffs
ⓘ
linked to:
Pictured Rocks National Lakeshore
shipping on Lake Superior ⓘ |
| automated | 1958 ⓘ |
| climate | cold, maritime-influenced Lake Superior climate ⓘ |
| constructionStartDate | 1873 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| currentUse |
aid to navigation
ⓘ
heritage tourism site ⓘ |
| focalHeight | approximately 107 feet ⓘ |
| hasStructure |
assistant keeper’s dwelling
ⓘ
brick lighthouse tower ⓘ fog signal building ⓘ keeper’s dwelling ⓘ oil house ⓘ |
| hasViewOf |
Lake Superior
ⓘ
Pictured Rocks shoreline ⓘ |
| historicUse |
guiding ore freighters
ⓘ
warning ships of reefs and shoals ⓘ |
| inServiceSince | 1874 ⓘ |
| lightCharacteristic | white flashing light ⓘ |
| listedOn | National Register of Historic Places ⓘ |
| locatedIn |
Alger County, Michigan
ⓘ
Michigan ⓘ Pictured Rocks National Lakeshore ⓘ |
| locatedOn | Lake Superior ⓘ |
| managedBy | National Park Service ⓘ |
| marking | white brick tower with black lantern ⓘ |
| nearbyFeature |
Au Sable Point
ⓘ
shipwreck remains along the shoreline ⓘ |
| NRHPListingReason |
architectural significance
ⓘ
maritime history significance ⓘ |
| NRHPType | historic district ⓘ |
| offers | guided tours in season ⓘ |
| openToPublic | yes ⓘ |
| originalLensType |
Third-order Fresnel lens
ⓘ
linked to:
Fresnel lens
|
| owner |
United States federal government
ⓘ
linked to:
United States government
|
| partOf | Pictured Rocks National Lakeshore ⓘ |
| purpose | to guide ships along a dangerous stretch of Lake Superior coastline ⓘ |
| region | Upper Peninsula of Michigan ⓘ |
| towerHeight | approximately 86 feet ⓘ |
| yearLit | 1874 ⓘ |
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: Au Sable Light Station (nearby) Description of subject: Au Sable Light Station is a historic lighthouse complex on Lake Superior in Michigan’s Pictured Rocks National Lakeshore, known for guiding ships along a once-treacherous stretch of coastline.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.