Ashokan Reservoir
E60615
Ashokan Reservoir is a major New York City water supply reservoir located in the Catskill Mountains of Ulster County, New York.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Ashokan Reservoir canonical | 27 |
| Ashokan Reservoir watershed | 2 |
| Ashokan Reservoir outlet works | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T386875 — 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: Ashokan Reservoir Context triple: [Esopus Creek, hasReservoir, Ashokan Reservoir]
-
A.
Amawalk Reservoir
Amawalk Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
-
B.
Muscoot Reservoir
Muscoot Reservoir is a man-made lake in Westchester County, New York, that serves as a key component of New York City’s Croton water supply system.
-
C.
Croton Falls Reservoir
Croton Falls Reservoir is a man-made lake in Westchester County, New York, that serves as part of New York City's Croton water supply system.
-
D.
East Branch Reservoir
East Branch Reservoir is a man-made water supply reservoir in New York’s Croton Watershed that helps provide drinking water to New York City.
-
E.
Hillview Reservoir
Hillview Reservoir is a key New York City water storage facility that serves as the final holding basin for treated water before it enters the city’s distribution system.
- 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: Ashokan Reservoir Target entity description: Ashokan Reservoir is a major New York City water supply reservoir located in the Catskill Mountains of Ulster County, New York.
-
A.
Amawalk Reservoir
Amawalk Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
-
B.
Muscoot Reservoir
Muscoot Reservoir is a man-made lake in Westchester County, New York, that serves as a key component of New York City’s Croton water supply system.
-
C.
Croton Falls Reservoir
Croton Falls Reservoir is a man-made lake in Westchester County, New York, that serves as part of New York City's Croton water supply system.
-
D.
East Branch Reservoir
East Branch Reservoir is a man-made water supply reservoir in New York’s Croton Watershed that helps provide drinking water to New York City.
-
E.
Hillview Reservoir
Hillview Reservoir is a key New York City water storage facility that serves as the final holding basin for treated water before it enters the city’s distribution system.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
reservoir
ⓘ
water supply reservoir ⓘ |
| allowedActivity |
hiking on designated trails
ⓘ
shoreline fishing with permit ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| builtFor | increasing New York City drinking water supply ⓘ |
| catchmentArea |
about 255 square miles
ⓘ
about 660 square kilometers ⓘ |
| connectedTo | Catskill Aqueduct ⓘ |
| constructionStartDate | 1907 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| createdBy |
construction of Ashokan Dam
ⓘ
impoundment of Esopus Creek ⓘ |
| crossedBy | New York State Route 28A ⓘ |
| drainageBasin |
Hudson River basin
ⓘ
linked to:
Hudson River watershed
|
| elevation |
about 180 meters above sea level
ⓘ
about 590 feet above sea level ⓘ |
| hasOutflow | Esopus Creek ⓘ |
| hasPart |
East Basin of Ashokan Reservoir
ⓘ
West Basin of Ashokan Reservoir ⓘ |
| historicalImpact | led to relocation of several local communities ⓘ |
| locatedIn |
Catskill Mountains
ⓘ
New York State ⓘ
linked to:
New York
Ulster County, New York ⓘ
linked to:
Ulster County
|
| locatedInTimeZone | Eastern Time Zone ⓘ |
| managedBy | New York City Department of Environmental Protection ⓘ |
| maximumDepth |
about 190 feet
ⓘ
about 58 meters ⓘ |
| maximumLength | about 12 miles ⓘ |
| maximumWidth | about 1 mile ⓘ |
| namedAfter |
Ashokan, a former hamlet in the Esopus Valley
ⓘ
linked to:
Town of Shandaken, New York
|
| near |
Town of Hurley, New York
ⓘ
Town of Marbletown, New York ⓘ Town of Olive, New York ⓘ
linked to:
Boiceville, New York
|
| openingDate | 1915 ⓘ |
| partOf |
Catskill–Delaware watershed
ⓘ
linked to:
Catskill-Delaware Watershed
New York City water supply system ⓘ |
| purpose | municipal water supply ⓘ |
| region | Catskill Park ⓘ |
| restrictedActivity |
most boating restricted
ⓘ
swimming prohibited ⓘ |
| suppliesWaterTo | New York City ⓘ |
| surfaceArea |
about 34 square kilometers
ⓘ
about 8,300 acres ⓘ |
| volume |
about 122.9 billion US gallons
ⓘ
about 465 million cubic meters ⓘ |
| watercourse | Esopus Creek ⓘ |
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: Ashokan Reservoir Description of subject: Ashokan Reservoir is a major New York City water supply reservoir located in the Catskill Mountains of Ulster County, New York.
Referenced by (30)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ashokan Reservoir
linked to: Ashokan Reservoir
linked to: Ashokan Reservoir