American Falls Reservoir
E750997
American Falls Reservoir is a large man-made lake on the Snake River in southeastern Idaho, used primarily for irrigation, flood control, and recreation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| American Falls Reservoir canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T8664106 — 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: American Falls Reservoir Context triple: [American Falls Dam, createsReservoir, American Falls Reservoir]
-
A.
Island Park Reservoir
Island Park Reservoir is a man-made lake in eastern Idaho popular for fishing, boating, and outdoor recreation within the Island Park area.
-
B.
John H. Kerr Reservoir
John H. Kerr Reservoir is a large man-made lake on the Roanoke River along the North Carolina–Virginia border, widely used for hydroelectric power, flood control, and recreation.
-
C.
Ashland Reservoir
Ashland Reservoir is a man-made lake in Ashland, Massachusetts, used for recreation and water management within the local community.
-
D.
Stillwater Reservoir
Stillwater Reservoir is a large, remote man-made lake in the western Adirondack Mountains of New York, popular for boating, fishing, and backcountry recreation.
-
E.
Cannonsville Reservoir
Cannonsville Reservoir is a major New York City water supply reservoir located in the western Catskill Mountains on the West Branch of the Delaware River.
- 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: American Falls Reservoir Target entity description: American Falls Reservoir is a large man-made lake on the Snake River in southeastern Idaho, used primarily for irrigation, flood control, and recreation.
-
A.
Island Park Reservoir
Island Park Reservoir is a man-made lake in eastern Idaho popular for fishing, boating, and outdoor recreation within the Island Park area.
-
B.
John H. Kerr Reservoir
John H. Kerr Reservoir is a large man-made lake on the Roanoke River along the North Carolina–Virginia border, widely used for hydroelectric power, flood control, and recreation.
-
C.
Ashland Reservoir
Ashland Reservoir is a man-made lake in Ashland, Massachusetts, used for recreation and water management within the local community.
-
D.
Stillwater Reservoir
Stillwater Reservoir is a large, remote man-made lake in the western Adirondack Mountains of New York, popular for boating, fishing, and backcountry recreation.
-
E.
Cannonsville Reservoir
Cannonsville Reservoir is a major New York City water supply reservoir located in the western Catskill Mountains on the West Branch of the Delaware River.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdBy | impoundment of the Snake River ⓘ |
| formedByDam | American Falls Dam NERFINISHED ⓘ |
| hasActivity |
birdwatching
ⓘ
boating ⓘ camping ⓘ fishing ⓘ |
| hasFishSpecies |
brown trout
ⓘ
channel catfish ⓘ rainbow trout ⓘ smallmouth bass ⓘ yellow perch ⓘ |
| hasNearbyInfrastructure |
Interstate 86 in Idaho
NERFINISHED
ⓘ
U.S. Route 30 in Idaho NERFINISHED ⓘ |
| hasRecreationArea |
boat ramps
ⓘ
campgrounds ⓘ picnic areas ⓘ |
| hasShorelineFeature | American Falls Reservoir State Park NERFINISHED ⓘ |
| inflow | Snake River NERFINISHED ⓘ |
| isPartOf | Snake River Plain irrigation system NERFINISHED ⓘ |
| locatedIn |
Idaho
ⓘ
Power County, Idaho NERFINISHED ⓘ |
| locatedInEcoregion | Snake River Plain NERFINISHED ⓘ |
| locatedInRegion | southeastern Idaho ⓘ |
| locatedInWatershed | Snake River watershed ⓘ |
| locatedNear |
American Falls, Idaho
NERFINISHED
ⓘ
Pocatello, Idaho NERFINISHED ⓘ |
| locatedOnRiver | Snake River NERFINISHED ⓘ |
| managingAgency | United States Bureau of Reclamation NERFINISHED ⓘ |
| outflow | Snake River NERFINISHED ⓘ |
| partOfProject | Minidoka Project NERFINISHED ⓘ |
| primaryUse | irrigation ⓘ |
| state | Idaho NERFINISHED ⓘ |
| use |
flood control
ⓘ
recreation ⓘ |
| usedFor |
agricultural water storage
ⓘ
hydroelectric support ⓘ |
| waterBodyType | freshwater lake ⓘ |
| watercourse | Snake River NERFINISHED ⓘ |
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: American Falls Reservoir Description of subject: American Falls Reservoir is a large man-made lake on the Snake River in southeastern Idaho, used primarily for irrigation, flood control, and recreation.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.