Green Mountain Reservoir
E530097
Green Mountain Reservoir is a man-made lake in north-central Colorado that stores and regulates water supplies for irrigation, municipal use, and hydropower generation on the Colorado River system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Green Mountain Reservoir canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T5525183 — 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: Green Mountain Reservoir Context triple: [Colorado-Big Thompson Project, hasComponent, Green Mountain Reservoir]
-
A.
Hopkinton Reservoir
Hopkinton Reservoir is a man-made lake in Hopkinton, Massachusetts, popular for recreation such as swimming, fishing, and boating within Hopkinton State Park.
-
B.
Union Valley Reservoir
Union Valley Reservoir is a large man-made lake in California’s Sierra Nevada used for recreation and hydroelectric power within Eldorado National Forest.
-
C.
Blue River Reservoir
Blue River Reservoir is a scenic man-made lake in Oregon popular for boating, fishing, and camping within the Cascade Range.
-
D.
Malden Reservoir
Malden Reservoir is a man-made water body in Massachusetts that serves as a local water supply and recreational resource within the greater Boston area.
-
E.
Greenfield Reservoir
Greenfield Reservoir is a man-made water reservoir in the Saddleworth area of Greater Manchester, England, forming part of the network of upland reservoirs in the Peak District.
- 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: Green Mountain Reservoir Target entity description: Green Mountain Reservoir is a man-made lake in north-central Colorado that stores and regulates water supplies for irrigation, municipal use, and hydropower generation on the Colorado River system.
-
A.
Hopkinton Reservoir
Hopkinton Reservoir is a man-made lake in Hopkinton, Massachusetts, popular for recreation such as swimming, fishing, and boating within Hopkinton State Park.
-
B.
Union Valley Reservoir
Union Valley Reservoir is a large man-made lake in California’s Sierra Nevada used for recreation and hydroelectric power within Eldorado National Forest.
-
C.
Blue River Reservoir
Blue River Reservoir is a scenic man-made lake in Oregon popular for boating, fishing, and camping within the Cascade Range.
-
D.
Malden Reservoir
Malden Reservoir is a man-made water body in Massachusetts that serves as a local water supply and recreational resource within the greater Boston area.
-
E.
Greenfield Reservoir
Greenfield Reservoir is a man-made water reservoir in the Saddleworth area of Greater Manchester, England, forming part of the network of upland reservoirs in the Peak District.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| completionDate | 1942 ⓘ |
| constructionStartDate | 1938 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| createdBy | construction of Green Mountain Dam ⓘ |
| elevation | approximately 2440 meters above sea level ⓘ |
| fishSpecies |
brown trout
ⓘ
kokanee salmon ⓘ lake trout ⓘ rainbow trout ⓘ |
| hasDamType | earthen dam (Green Mountain Dam) ⓘ |
| impoundedBy | Green Mountain Dam ⓘ |
| locatedIn |
Colorado
ⓘ
Summit County, Colorado ⓘ |
| locatedInNationalForest | White River National Forest ⓘ |
| locatedInRegion | north-central Colorado ⓘ |
| locatedNear | Heeney, Colorado ⓘ |
| locatedNorthOf | Silverthorne, Colorado ⓘ |
| locatedOnRiver | Blue River ⓘ |
| managingAgency |
United States Bureau of Reclamation
ⓘ
linked to:
Bureau of Reclamation
|
| nearHighway | Colorado State Highway 9 ⓘ |
| operator |
United States Bureau of Reclamation
ⓘ
linked to:
Bureau of Reclamation
|
| outflow | Blue River ⓘ |
| partOf |
Colorado River system
ⓘ
linked to:
Colorado River Basin
Upper Colorado River Basin water management system ⓘ
linked to:
Colorado River Storage and Regulation System
|
| project | Colorado-Big Thompson Project ⓘ |
| purpose |
hydropower generation
ⓘ
irrigation water storage ⓘ municipal water supply ⓘ river flow regulation ⓘ |
| recreationActivity |
boating
ⓘ
camping ⓘ fishing ⓘ ice fishing ⓘ water skiing ⓘ |
| state | Colorado ⓘ |
| supportsUse |
downstream irrigation
ⓘ
downstream municipal water supply ⓘ hydroelectric power production at Green Mountain Dam ⓘ |
| watercourse | Blue River ⓘ |
| waterManagementRole |
regulation of Colorado River flows
ⓘ
storage of Colorado River water ⓘ |
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: Green Mountain Reservoir Description of subject: Green Mountain Reservoir is a man-made lake in north-central Colorado that stores and regulates water supplies for irrigation, municipal use, and hydropower generation on the Colorado River system.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.