Horsetooth Reservoir
E530095
Horsetooth Reservoir is a large man-made lake near Fort Collins, Colorado, popular for recreation and water storage as part of the region’s major water supply system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Horsetooth Reservoir canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5525179 — 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: Horsetooth Reservoir Context triple: [Colorado-Big Thompson Project, hasComponent, Horsetooth Reservoir]
-
A.
Palisade Reservoir
Palisade Reservoir is a man-made lake in central Utah used primarily for irrigation, recreation, and local water storage.
-
B.
Pueblo Reservoir
Pueblo Reservoir is a large man-made lake in southern Colorado that serves as a key water supply, recreation area, and flood-control resource for the Pueblo region.
-
C.
Blue Mesa Reservoir
Blue Mesa Reservoir is the largest body of water entirely in Colorado, a major storage and recreation reservoir on the Gunnison River within Curecanti National Recreation Area.
-
D.
Stampede Reservoir
Stampede Reservoir is a man-made lake in the Sierra Nevada near Truckee, California, primarily used for water storage, flood control, and recreation as part of the Truckee River system.
-
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: Horsetooth Reservoir Target entity description: Horsetooth Reservoir is a large man-made lake near Fort Collins, Colorado, popular for recreation and water storage as part of the region’s major water supply system.
-
A.
Palisade Reservoir
Palisade Reservoir is a man-made lake in central Utah used primarily for irrigation, recreation, and local water storage.
-
B.
Pueblo Reservoir
Pueblo Reservoir is a large man-made lake in southern Colorado that serves as a key water supply, recreation area, and flood-control resource for the Pueblo region.
-
C.
Blue Mesa Reservoir
Blue Mesa Reservoir is the largest body of water entirely in Colorado, a major storage and recreation reservoir on the Gunnison River within Curecanti National Recreation Area.
-
D.
Stampede Reservoir
Stampede Reservoir is a man-made lake in the Sierra Nevada near Truckee, California, primarily used for water storage, flood control, and recreation as part of the Truckee River system.
-
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 (48)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionStartDate | 1946 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| elevationAboveSeaLevel | about 5410 feet ⓘ |
| hasFacility |
boat ramps
ⓘ
campgrounds ⓘ marinas ⓘ picnic areas ⓘ |
| hasFishSpecies |
catfish
ⓘ
largemouth bass ⓘ smallmouth bass ⓘ trout ⓘ walleye ⓘ wiper ⓘ |
| hasShorelineFeature | Horsetooth Rock NERFINISHED ⓘ |
| inflow | Charles Hansen Feeder Canal NERFINISHED ⓘ |
| length | approximately 9 miles ⓘ |
| locatedIn | Larimer County, Colorado NERFINISHED ⓘ |
| locatedNear | Fort Collins, Colorado NERFINISHED ⓘ |
| locatedOn | Horsetooth Creek NERFINISHED ⓘ |
| managingOrganization |
Larimer County Department of Natural Resources
NERFINISHED
ⓘ
Northern Colorado Water Conservancy District NERFINISHED ⓘ |
| maximumDepth | over 200 feet ⓘ |
| nearCity | Fort Collins NERFINISHED ⓘ |
| openingDate | 1951 ⓘ |
| outflow | Horsetooth Outlet Canal NERFINISHED ⓘ |
| partOf | Colorado-Big Thompson Project NERFINISHED ⓘ |
| partOfWaterSupplySystemFor |
Fort Collins
NERFINISHED
ⓘ
Greeley NERFINISHED ⓘ Loveland NERFINISHED ⓘ other Northern Colorado communities ⓘ |
| primaryUse |
irrigation water storage
ⓘ
municipal water supply ⓘ recreation ⓘ |
| recreationActivity |
boating
ⓘ
camping ⓘ fishing ⓘ hiking ⓘ scuba diving ⓘ stand-up paddleboarding ⓘ swimming ⓘ water skiing ⓘ |
| regionServed | Northern Colorado NERFINISHED ⓘ |
| surfaceArea | approximately 1900 acres ⓘ |
| waterSource |
Big Thompson River
NERFINISHED
ⓘ
Colorado River NERFINISHED ⓘ |
| waterVolume | approximately 156000 acre-feet ⓘ |
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: Horsetooth Reservoir Description of subject: Horsetooth Reservoir is a large man-made lake near Fort Collins, Colorado, popular for recreation and water storage as part of the region’s major water supply system.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.