Devil Canyon Afterbay
E298166
Devil Canyon Afterbay is a regulating reservoir in Southern California that stores and moderates water releases from the Devil Canyon Powerplant as part of the State Water Project system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Devil Canyon Afterbay canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2780437 — 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: Devil Canyon Afterbay Context triple: [Devil Canyon Powerplant, connectedTo, Devil Canyon Afterbay]
-
A.
Deadman Canyon
Deadman Canyon is a remote glacial valley in Sequoia National Park, California, known for its dramatic granite walls, alpine meadows, and backcountry hiking routes.
-
B.
Devils Garden
Devils Garden is a popular area in Arches National Park known for its striking sandstone formations, numerous natural arches, and extensive hiking trails.
-
C.
Platinum Dunes
Platinum Dunes is an American film production company, co-founded by Michael Bay, known for producing horror and thriller films such as remakes of classic franchises and original hits like "A Quiet Place."
-
D.
Bloody Ridge
Bloody Ridge is a historically significant World War II battlefield on Guadalcanal in the Solomon Islands, known for a pivotal 1942 clash between U.S. and Japanese forces.
-
E.
Devil's Cataract
Devil's Cataract is the westernmost and one of the most dramatic individual waterfalls within the Victoria Falls complex on the Zambezi River, known for its powerful flow and deep erosion.
- 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: Devil Canyon Afterbay Target entity description: Devil Canyon Afterbay is a regulating reservoir in Southern California that stores and moderates water releases from the Devil Canyon Powerplant as part of the State Water Project system.
-
A.
Deadman Canyon
Deadman Canyon is a remote glacial valley in Sequoia National Park, California, known for its dramatic granite walls, alpine meadows, and backcountry hiking routes.
-
B.
Devils Garden
Devils Garden is a popular area in Arches National Park known for its striking sandstone formations, numerous natural arches, and extensive hiking trails.
-
C.
Platinum Dunes
Platinum Dunes is an American film production company, co-founded by Michael Bay, known for producing horror and thriller films such as remakes of classic franchises and original hits like "A Quiet Place."
-
D.
Bloody Ridge
Bloody Ridge is a historically significant World War II battlefield on Guadalcanal in the Solomon Islands, known for a pivotal 1942 clash between U.S. and Japanese forces.
-
E.
Devil's Cataract
Devil's Cataract is the westernmost and one of the most dramatic individual waterfalls within the Victoria Falls complex on the Zambezi River, known for its powerful flow and deep erosion.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
regulating reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| connectedTo |
Devil Canyon Powerplant
ⓘ
State Water Project ⓘ
surface form:
State Water Project aqueduct system
|
| country |
United States of America
ⓘ
surface form:
United States
|
| function |
moderate fluctuations in downstream flows
ⓘ
store water released from hydroelectric generation ⓘ |
| infrastructureType |
hydropower support facility
ⓘ
water storage facility ⓘ |
| isUpstreamOf | downstream State Water Project facilities ⓘ |
| locatedIn |
San Bernardino County
ⓘ
surface form:
San Bernardino County, California
Southern California ⓘ |
| locatedNear |
city of San Bernardino, California
ⓘ
surface form:
City of San Bernardino, California
San Bernardino Mountains ⓘ |
| managingAgency | California Department of Water Resources ⓘ |
| operator | California Department of Water Resources ⓘ |
| partOf |
State Water Project
ⓘ
surface form:
California State Water Project
State Water Project ⓘ
surface form:
California water conveyance system
Devil Canyon Powerplant ⓘ
surface form:
Devil Canyon–Castaic power system
|
| projectComponentOf |
California Aqueduct
ⓘ
surface form:
California Aqueduct East Branch Extension
|
| purpose |
provide flow regulation for downstream facilities
ⓘ
regulate water releases from Devil Canyon Powerplant ⓘ |
| receivesWaterFrom | Devil Canyon Powerplant ⓘ |
| regulates | flows from Devil Canyon Powerplant into downstream channels ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| usedFor |
hydroelectric system regulation
ⓘ
water supply operations support ⓘ |
| waterbodyType | reservoir ⓘ |
| waterSource | California Aqueduct ⓘ |
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: Devil Canyon Afterbay Description of subject: Devil Canyon Afterbay is a regulating reservoir in Southern California that stores and moderates water releases from the Devil Canyon Powerplant as part of the State Water Project system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.