Crystal Dam
E613660
Crystal Dam is a concrete arch dam on the Gunnison River in Colorado, forming part of the Curecanti Project’s series of reservoirs for hydroelectric power generation and water storage.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Crystal Dam canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T6725294 — 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: Crystal Dam Context triple: [Blue Mesa Dam, upstreamFrom, Crystal Dam]
-
A.
Dry Falls Dam
Dry Falls Dam is a key irrigation and water management structure in central Washington State, built as part of the Columbia Basin Project to help distribute Columbia River water to surrounding agricultural lands.
-
B.
McClure Dam
McClure Dam is a hydroelectric dam on the Dead River in Michigan, forming McClure Basin and providing power and water management for the surrounding region.
-
C.
Goodwin Dam
Goodwin Dam is a concrete gravity diversion dam on California’s Stanislaus River that helps regulate river flow and supplies irrigation water to surrounding agricultural areas.
-
D.
Forge Dam
Forge Dam is a popular recreational park and former industrial mill site along Porter Brook in Sheffield, England, known for its woodland walks, playground, and café.
-
E.
Red Rock Dam
Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
- 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: Crystal Dam Target entity description: Crystal Dam is a concrete arch dam on the Gunnison River in Colorado, forming part of the Curecanti Project’s series of reservoirs for hydroelectric power generation and water storage.
-
A.
Dry Falls Dam
Dry Falls Dam is a key irrigation and water management structure in central Washington State, built as part of the Columbia Basin Project to help distribute Columbia River water to surrounding agricultural lands.
-
B.
McClure Dam
McClure Dam is a hydroelectric dam on the Dead River in Michigan, forming McClure Basin and providing power and water management for the surrounding region.
-
C.
Goodwin Dam
Goodwin Dam is a concrete gravity diversion dam on California’s Stanislaus River that helps regulate river flow and supplies irrigation water to surrounding agricultural areas.
-
D.
Forge Dam
Forge Dam is a popular recreational park and former industrial mill site along Porter Brook in Sheffield, England, known for its woodland walks, playground, and café.
-
E.
Red Rock Dam
Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
concrete arch dam
ⓘ
dam ⓘ |
| constructionBegan | 1961 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| damType | arch ⓘ |
| downstreamFrom | Blue Mesa Dam NERFINISHED ⓘ |
| formsPartOf | Curecanti National Recreation Area NERFINISHED ⓘ |
| hasPowerPlant | yes ⓘ |
| hasSpillway | yes ⓘ |
| height | about 323 feet ⓘ |
| impounds | Crystal Reservoir NERFINISHED ⓘ |
| length | about 620 feet ⓘ |
| locatedIn | Colorado ⓘ |
| locatedInCanyon | Black Canyon of the Gunnison NERFINISHED ⓘ |
| locatedInCounty | Gunnison County, Colorado NERFINISHED ⓘ |
| locatedOnRiver | Gunnison River NERFINISHED ⓘ |
| managingAgency | U.S. Bureau of Reclamation NERFINISHED ⓘ |
| material | concrete ⓘ |
| nearCity | Montrose, Colorado NERFINISHED ⓘ |
| openingDate | 1976 ⓘ |
| operator | United States Bureau of Reclamation NERFINISHED ⓘ |
| owner | United States Bureau of Reclamation NERFINISHED ⓘ |
| partOf | Curecanti Project NERFINISHED ⓘ |
| partOfSystem | Colorado River Storage Project NERFINISHED ⓘ |
| purpose |
hydroelectric power generation
ⓘ
water storage ⓘ |
| region | Western Colorado NERFINISHED ⓘ |
| riverBasin | Colorado River Basin NERFINISHED ⓘ |
| upstreamFrom | Morrow Point Dam NERFINISHED ⓘ |
| watercourseDammed | Gunnison 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: Crystal Dam Description of subject: Crystal Dam is a concrete arch dam on the Gunnison River in Colorado, forming part of the Curecanti Project’s series of reservoirs for hydroelectric power generation and water storage.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.