Mount Elbert Forebay
E402379
Mount Elbert Forebay is a high-altitude reservoir in Colorado used primarily for hydroelectric power generation and water storage near Mount Elbert in the Sawatch Range.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Mount Elbert Powerplant | 2 |
| Mount Elbert Forebay canonical | 1 |
| Mt. Elbert Pumped-Storage Powerplant | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3943958 — 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: Mount Elbert Forebay Context triple: [Sawatch Range, contains, Mount Elbert Forebay]
-
A.
Blue Mesa
Blue Mesa is a striking badlands area in Arizona known for its colorful, banded rock formations and petrified wood within Petrified Forest National Park.
-
B.
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.
-
C.
Bear Gulch Reservoir
Bear Gulch Reservoir is a small man-made lake in Pinnacles National Park, California, known for its scenic setting amid volcanic rock formations and proximity to popular hiking and cave trails.
-
D.
Palisade Reservoir
Palisade Reservoir is a man-made lake in central Utah used primarily for irrigation, recreation, and local water storage.
-
E.
Grand Lake, Colorado
Grand Lake, Colorado is a small mountain town at the western gateway to Rocky Mountain National Park, known for its scenic alpine lake and outdoor recreation.
- 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: Mount Elbert Forebay Target entity description: Mount Elbert Forebay is a high-altitude reservoir in Colorado used primarily for hydroelectric power generation and water storage near Mount Elbert in the Sawatch Range.
-
A.
Blue Mesa
Blue Mesa is a striking badlands area in Arizona known for its colorful, banded rock formations and petrified wood within Petrified Forest National Park.
-
B.
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.
-
C.
Bear Gulch Reservoir
Bear Gulch Reservoir is a small man-made lake in Pinnacles National Park, California, known for its scenic setting amid volcanic rock formations and proximity to popular hiking and cave trails.
-
D.
Palisade Reservoir
Palisade Reservoir is a man-made lake in central Utah used primarily for irrigation, recreation, and local water storage.
-
E.
Grand Lake, Colorado
Grand Lake, Colorado is a small mountain town at the western gateway to Rocky Mountain National Park, known for its scenic alpine lake and outdoor recreation.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
reservoir ⓘ |
| access | via local forest roads from U.S. Highway 24 ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| climateZone | alpine ⓘ |
| connectedTo |
Mount Elbert Powerplant
ⓘ
Twin Lakes Reservoir ⓘ |
| constructionMethod | earthen dam impoundment ⓘ |
| continent | North America ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| elevation |
approximately 3000 meters above sea level
ⓘ
approximately 9800 feet above sea level ⓘ |
| energyInfrastructureRole |
supports peak-load electricity generation
ⓘ
supports pumped-storage cycling between forebay and Twin Lakes Reservoir ⓘ |
| function |
regulating reservoir for powerplant operations
ⓘ
upper reservoir for pumped-storage system ⓘ |
| locatedIn |
Colorado
ⓘ
Lake County, Colorado NERFINISHED ⓘ |
| locatedInMountainRange | Sawatch Range ⓘ |
| locatedInProtectedArea | San Isabel National Forest NERFINISHED ⓘ |
| locatedInWatershed | Arkansas River basin ⓘ |
| locatedNear |
Mount Elbert
ⓘ
Twin Lakes, Colorado ⓘ |
| locatedOn | a plateau above Twin Lakes ⓘ |
| nearCity | Leadville, Colorado ⓘ |
| nearFeature |
Mount Elbert Trailheads
ⓘ
linked to:
North Mount Elbert Trailhead
Twin Lakes Reservoir ⓘ |
| operator |
Bureau of Reclamation Eastern Colorado Area Office
ⓘ
linked to:
Bureau of Reclamation
U.S. Bureau of Reclamation ⓘ
linked to:
Bureau of Reclamation
|
| outflow | Lake Creek ⓘ |
| ownedBy | United States government ⓘ |
| partOf |
Colorado-Big Thompson Project
ⓘ
Mount Elbert Pumped-Storage Hydroelectric Project ⓘ |
| recreationActivity |
boating (non-motorized, where permitted)
ⓘ
fishing ⓘ |
| region | central Colorado Rocky Mountains ⓘ |
| use |
hydroelectric power generation
ⓘ
recreation ⓘ water storage ⓘ |
| watercourse | Lake Creek ⓘ |
| waterManagementRole | part of transbasin diversion system in Colorado ⓘ |
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: Mount Elbert Forebay Description of subject: Mount Elbert Forebay is a high-altitude reservoir in Colorado used primarily for hydroelectric power generation and water storage near Mount Elbert in the Sawatch Range.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Mount Elbert Forebay
linked to: Mount Elbert Forebay
linked to: Mount Elbert Forebay