Cosumnes River
E180340
The Cosumnes River is a relatively free-flowing river in Northern California known for its diverse riparian habitats and role in supporting regional wildlife and recreation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cosumnes River canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T844158 — 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: Cosumnes River Context triple: [Eldorado National Forest, hasWatercourse, Cosumnes River]
-
A.
Feather River
The Feather River is a major tributary of the Sacramento River in Northern California, known for its extensive role in the state’s water supply, hydroelectric power generation, and flood control.
-
B.
Tuolumne River
The Tuolumne River is a major Sierra Nevada waterway in California known for its scenic alpine meadows, deep granite canyons, and popular whitewater rafting and fishing opportunities.
-
C.
Merced River
The Merced River is a major Sierra Nevada waterway in California renowned for carving Yosemite Valley and providing iconic scenic, recreational, and ecological value within and beyond Yosemite National Park.
-
D.
Kings River
Kings River is a major river in California’s Sierra Nevada that carves the deep gorge of Kings Canyon and gives its name to Kings Canyon National Park.
-
E.
San Joaquin River
The San Joaquin River is a major river in central California that flows through the San Joaquin Valley and supports extensive agricultural, ecological, and water supply systems before joining the Sacramento–San Joaquin Delta.
- 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: Cosumnes River Target entity description: The Cosumnes River is a relatively free-flowing river in Northern California known for its diverse riparian habitats and role in supporting regional wildlife and recreation.
-
A.
Feather River
The Feather River is a major tributary of the Sacramento River in Northern California, known for its extensive role in the state’s water supply, hydroelectric power generation, and flood control.
-
B.
Tuolumne River
The Tuolumne River is a major Sierra Nevada waterway in California known for its scenic alpine meadows, deep granite canyons, and popular whitewater rafting and fishing opportunities.
-
C.
Merced River
The Merced River is a major Sierra Nevada waterway in California renowned for carving Yosemite Valley and providing iconic scenic, recreational, and ecological value within and beyond Yosemite National Park.
-
D.
Kings River
Kings River is a major river in California’s Sierra Nevada that carves the deep gorge of Kings Canyon and gives its name to Kings Canyon National Park.
-
E.
San Joaquin River
The San Joaquin River is a major river in central California that flows through the San Joaquin Valley and supports extensive agricultural, ecological, and water supply systems before joining the Sacramento–San Joaquin Delta.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
river ⓘ |
| associatedWith |
U.S. Bureau of Land Management
ⓘ
surface form:
Bureau of Land Management
California Department of Fish and Wildlife ⓘ The Nature Conservancy ⓘ |
| basinCountry | United States of America ⓘ |
| country | United States of America ⓘ |
| crossedBy |
California State Route 99
ⓘ
Interstate 5 ⓘ |
| drainageBasin |
San Joaquin River Basin
ⓘ
surface form:
San Joaquin River basin
|
| flowsInto | Mokelumne River ⓘ |
| hasEcosystemType |
floodplain habitat
ⓘ
riparian forest ⓘ wetlands ⓘ |
| hasHydrologicalCharacteristic |
seasonal flooding
ⓘ
unregulated lower reaches ⓘ |
| hasProtectedArea | Cosumnes River Preserve ⓘ |
| hasTributary |
Middle Fork Cosumnes River
ⓘ
North Fork Cosumnes River ⓘ South Fork Cosumnes River ⓘ |
| knownFor |
diverse riparian habitats
ⓘ
recreational opportunities ⓘ relatively free-flowing condition ⓘ supporting regional wildlife ⓘ |
| length | approximately 80 miles ⓘ |
| locatedIn |
Amador County, California
ⓘ
California, United States ⓘ
surface form:
California
El Dorado County, California ⓘ Northern California ⓘ Sacramento County, California NERFINISHED ⓘ |
| mouthElevation | approximately 7 feet ⓘ |
| mouthLocation | near Walnut Grove, California ⓘ |
| nearbyCity |
Elk Grove
ⓘ
surface form:
Elk Grove, California
Galt, California ⓘ |
| partOf |
Sacramento–San Joaquin River Delta
ⓘ
surface form:
Sacramento–San Joaquin River Delta watershed
|
| region |
Central Valley
ⓘ
surface form:
Sacramento–San Joaquin Valley
|
| sourceLocation |
Sierra Nevada
ⓘ
surface form:
Sierra Nevada, California
|
| supportsSpecies |
migratory birds
ⓘ
salmon ⓘ sandhill cranes ⓘ steelhead trout ⓘ |
| tributaryOf | Mokelumne River ⓘ |
| usedFor |
birdwatching
ⓘ
boating ⓘ fishing ⓘ kayaking ⓘ wildlife viewing ⓘ |
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: Cosumnes River Description of subject: The Cosumnes River is a relatively free-flowing river in Northern California known for its diverse riparian habitats and role in supporting regional wildlife and recreation.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.