Lake Oroville
E68629
Lake Oroville is a large man-made reservoir in Northern California, created by the Oroville Dam on the Feather River, that serves as a major source of water storage, flood control, and recreation.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lake Oroville canonical | 16 |
| Lake Oroville State Recreation Area | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T495744 — 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: Lake Oroville Context triple: [State Water Project, hasComponent, Lake Oroville]
-
A.
Shasta Dam
Shasta Dam is a large concrete gravity dam on California’s Sacramento River, forming Shasta Lake and serving as a key source of water storage, hydroelectric power, and flood control for the state.
-
B.
Folsom Dam
Folsom Dam is a large concrete dam on the American River in California that provides flood control, water storage, and hydroelectric power for the Sacramento region.
-
C.
Butte Lake
Butte Lake is a scenic high-elevation lake in northern California known for its volcanic landscape, clear waters, and access to hiking and camping within Lassen Volcanic National Park.
-
D.
Oroville Dam
Oroville Dam is a large earthfill embankment dam on the Feather River in Northern California, serving as a key water storage, flood control, and hydroelectric facility.
-
E.
Lake Tahoe
Lake Tahoe is a large, deep, and famously clear freshwater lake in the Sierra Nevada mountains, straddling the border of California and Nevada and serving as a major destination for outdoor recreation and tourism.
- 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: Lake Oroville Target entity description: Lake Oroville is a large man-made reservoir in Northern California, created by the Oroville Dam on the Feather River, that serves as a major source of water storage, flood control, and recreation.
-
A.
Shasta Dam
Shasta Dam is a large concrete gravity dam on California’s Sacramento River, forming Shasta Lake and serving as a key source of water storage, hydroelectric power, and flood control for the state.
-
B.
Folsom Dam
Folsom Dam is a large concrete dam on the American River in California that provides flood control, water storage, and hydroelectric power for the Sacramento region.
-
C.
Butte Lake
Butte Lake is a scenic high-elevation lake in northern California known for its volcanic landscape, clear waters, and access to hiking and camping within Lassen Volcanic National Park.
-
D.
Oroville Dam
Oroville Dam is a large earthfill embankment dam on the Feather River in Northern California, serving as a key water storage, flood control, and hydroelectric facility.
-
E.
Lake Tahoe
Lake Tahoe is a large, deep, and famously clear freshwater lake in the Sierra Nevada mountains, straddling the border of California and Nevada and serving as a major destination for outdoor recreation and tourism.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| completed | 1968 ⓘ |
| connectedInfrastructure |
Hyatt Powerplant
ⓘ
surface form:
Edward Hyatt Powerplant
Oroville Dam ⓘ
surface form:
Oroville–Thermalito Complex
|
| constructionBegan | 1961 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdByProject |
Oroville Dam
ⓘ
surface form:
Oroville Dam Project
|
| fishSpecies |
bass
ⓘ
salmon ⓘ trout ⓘ |
| formedBy | Oroville Dam ⓘ |
| hasSpillway |
Oroville Dam
ⓘ
surface form:
Oroville Dam emergency spillway
Oroville Dam main spillway ⓘ |
| inflow |
Feather River
ⓘ
Middle Fork Feather River ⓘ Feather River ⓘ
surface form:
North Fork Feather River
South Fork Feather River ⓘ |
| locatedIn |
Butte County
ⓘ
surface form:
Butte County, California
California, United States ⓘ
surface form:
California
Northern California ⓘ |
| locatedOnRiver | Feather River ⓘ |
| managingAgency | California Department of Water Resources ⓘ |
| maximumCapacity | approximately 3,537,577 acre-feet ⓘ |
| maximumDepth | over 690 feet ⓘ |
| nearCity |
City of Oroville, California
ⓘ
surface form:
Oroville, California
|
| notableEvent | 2017 Oroville Dam spillway crisis ⓘ |
| opened | 1968 ⓘ |
| outflow | Feather River ⓘ |
| partOf |
State Water Project
ⓘ
surface form:
California State Water Project
Feather River ⓘ
surface form:
Feather River watershed
|
| protectedArea |
Lake Oroville
self-linksurface differs
ⓘ
surface form:
Lake Oroville State Recreation Area
|
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation supply ⓘ recreation ⓘ water storage ⓘ |
| rank | one of the largest reservoirs in California ⓘ |
| recreationActivity |
boating
ⓘ
camping ⓘ fishing ⓘ swimming ⓘ water skiing ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| surfaceArea | approximately 15,800 acres at full pool ⓘ |
| waterSupplyFor |
Central Valley Project
ⓘ
surface form:
Central Valley Project service areas (via exchanges and interties)
agricultural users in the Central Valley ⓘ municipal users in Southern California ⓘ |
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: Lake Oroville Description of subject: Lake Oroville is a large man-made reservoir in Northern California, created by the Oroville Dam on the Feather River, that serves as a major source of water storage, flood control, and recreation.
Referenced by (19)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lake Oroville State Recreation Area
this entity surface form:
Lake Oroville State Recreation Area
this entity surface form:
Lake Oroville State Recreation Area