Old Croton Aqueduct State Historic Park
E32936
Old Croton Aqueduct State Historic Park is a linear park and historic trail that follows the route of the 19th-century aqueduct that once carried New York City’s drinking water from the Croton River.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T254583 — 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 Croton Aqueduct State Historic Park Context triple: [Westchester County, New York, contains, Old Croton Aqueduct State Historic Park]
-
A.
Staatsburgh State Historic Site
Staatsburgh State Historic Site is a Gilded Age mansion and former country estate of the Mills family, preserved as a museum overlooking the Hudson River in New York.
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B.
Olana State Historic Site
Olana State Historic Site is the former home and Persian-inspired hilltop estate of Hudson River School painter Frederic Edwin Church, now preserved as a museum and landscape overlooking the Hudson River.
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C.
Walkway Over the Hudson
Walkway Over the Hudson is a former railroad bridge transformed into one of the world’s longest elevated pedestrian parks, offering expansive views over the Hudson River in New York.
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D.
New Croton Reservoir
The New Croton Reservoir is a major water supply reservoir in Westchester County, New York, that forms a key part of New York City's Croton water system.
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E.
Titicus Reservoir
Titicus Reservoir is a man-made lake in Westchester County, New York, that serves as one of the key water supply reservoirs for New York City.
- 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 Croton Aqueduct State Historic Park Target entity description: Old Croton Aqueduct State Historic Park is a linear park and historic trail that follows the route of the 19th-century aqueduct that once carried New York City’s drinking water from the Croton River.
-
A.
Staatsburgh State Historic Site
Staatsburgh State Historic Site is a Gilded Age mansion and former country estate of the Mills family, preserved as a museum overlooking the Hudson River in New York.
-
B.
Olana State Historic Site
Olana State Historic Site is the former home and Persian-inspired hilltop estate of Hudson River School painter Frederic Edwin Church, now preserved as a museum and landscape overlooking the Hudson River.
-
C.
Walkway Over the Hudson
Walkway Over the Hudson is a former railroad bridge transformed into one of the world’s longest elevated pedestrian parks, offering expansive views over the Hudson River in New York.
-
D.
New Croton Reservoir
The New Croton Reservoir is a major water supply reservoir in Westchester County, New York, that forms a key part of New York City's Croton water system.
-
E.
Titicus Reservoir
Titicus Reservoir is a man-made lake in Westchester County, New York, that serves as one of the key water supply reservoirs for New York City.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
historic trail
ⓘ
linear park ⓘ state park ⓘ |
| connects |
Croton Gorge Park
ⓘ
Yonkers, New York ⓘ
surface form:
Yonkers
northern Manhattan ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| follows |
Croton River to New York City water supply route
ⓘ
Hudson River waterfront ⓘ
surface form:
Hudson River corridor
Old Croton Aqueduct State Historic Park self-linksurface differs ⓘ
surface form:
Old Croton Aqueduct
route of a 19th-century aqueduct ⓘ |
| hasCategory |
Historic trails in the United States
ⓘ
Parks in Westchester County, New York ⓘ State parks of New York ⓘ |
| hasLength | approximately 26 miles ⓘ |
| hasPart |
Croton Dam
ⓘ
Gatehouses ⓘ Old Croton Aqueduct State Historic Park self-linksurface differs ⓘ
surface form:
Old Croton Aqueduct Trailway
Ventilators ⓘ Weir chambers ⓘ |
| hasSurface | mixed dirt and paved trail sections ⓘ |
| hasVisitorCenter | Keeper’s House Visitor Center ⓘ |
| heritageDesignation | National Historic Landmark ⓘ |
| inception | 20th century ⓘ |
| locatedIn |
Hudson Valley
ⓘ
surface form:
Hudson River Valley
New York City ⓘ Westchester County, New York ⓘ |
| mainTheme |
19th-century civil engineering
ⓘ
history of New York City water supply ⓘ |
| namedAfter |
Old Croton Aqueduct State Historic Park
self-linksurface differs
ⓘ
surface form:
Old Croton Aqueduct
|
| near | Hudson River ⓘ |
| openToPublic | yes ⓘ |
| operator | New York State Office of Parks, Recreation and Historic Preservation ⓘ |
| partOf |
New York State Office of Parks, Recreation and Historic Preservation
ⓘ
surface form:
New York State Parks system
|
| state | New York ⓘ |
| subjectOf |
educational programs
ⓘ
guided tours ⓘ interpretive exhibits ⓘ |
| traverses |
residential neighborhoods
ⓘ
urban areas ⓘ woodlands ⓘ |
| usedFor |
bicycling
ⓘ
hiking ⓘ historic interpretation ⓘ jogging ⓘ nature observation ⓘ walking ⓘ |
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 Croton Aqueduct State Historic Park Description of subject: Old Croton Aqueduct State Historic Park is a linear park and historic trail that follows the route of the 19th-century aqueduct that once carried New York City’s drinking water from the Croton River.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Old Croton Aqueduct
Old Croton Aqueduct State Historic Park
→
follows
→
Old Croton Aqueduct State Historic Park
self-linksurface differs
ⓘ
this entity surface form:
Old Croton Aqueduct
Old Croton Aqueduct State Historic Park
→
hasPart
→
Old Croton Aqueduct State Historic Park
self-linksurface differs
ⓘ
this entity surface form:
Old Croton Aqueduct Trailway
Old Croton Aqueduct State Historic Park
→
namedAfter
→
Old Croton Aqueduct State Historic Park
self-linksurface differs
ⓘ
this entity surface form:
Old Croton Aqueduct
subject surface form:
Van Cortlandt Park
this entity surface form:
Old Croton Aqueduct Trail segment
this entity surface form:
Old Croton Aqueduct
this entity surface form:
Old Croton Aqueduct
this entity surface form:
Old Croton Aqueduct system
this entity surface form:
Old Croton Aqueduct State Historic Park trails
this entity surface form:
Old Croton Aqueduct State Historic Park (trail)