Middle Fork Feather River
E480429
The Middle Fork Feather River is a major tributary of California’s Feather River system, flowing through the northern Sierra Nevada and contributing significant water and scenic canyon landscapes before reaching Lake Oroville.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Middle Fork Feather River canonical | 6 |
| Middle Fork Feather River Wild and Scenic River | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3270293 — 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: Middle Fork Feather River Context triple: [Lake Oroville, inflow, Middle Fork Feather River]
-
A.
Middle Fork Kings River
The Middle Fork Kings River is a remote, rugged tributary of California’s Kings River known for its deep granite canyons, challenging whitewater, and pristine Sierra Nevada wilderness.
-
B.
North Fork American River
The North Fork American River is a major tributary of California’s American River, known for its rugged canyon scenery, whitewater recreation, and relatively undisturbed natural habitat in the Sierra Nevada foothills.
-
C.
Middle Fork American River
The Middle Fork American River is a popular whitewater rafting and kayaking destination in California’s Sierra Nevada, known for its scenic canyon, challenging rapids, and historic gold-mining sites.
-
D.
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.
-
E.
South Fork American River
The South Fork American River is a major tributary of California’s American River in the Sierra Nevada foothills, renowned for its historical role in the Gold Rush and its popular whitewater rafting runs.
- 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: Middle Fork Feather River Target entity description: The Middle Fork Feather River is a major tributary of California’s Feather River system, flowing through the northern Sierra Nevada and contributing significant water and scenic canyon landscapes before reaching Lake Oroville.
-
A.
Middle Fork Kings River
The Middle Fork Kings River is a remote, rugged tributary of California’s Kings River known for its deep granite canyons, challenging whitewater, and pristine Sierra Nevada wilderness.
-
B.
North Fork American River
The North Fork American River is a major tributary of California’s American River, known for its rugged canyon scenery, whitewater recreation, and relatively undisturbed natural habitat in the Sierra Nevada foothills.
-
C.
Middle Fork American River
The Middle Fork American River is a popular whitewater rafting and kayaking destination in California’s Sierra Nevada, known for its scenic canyon, challenging rapids, and historic gold-mining sites.
-
D.
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.
-
E.
South Fork American River
The South Fork American River is a major tributary of California’s American River in the Sierra Nevada foothills, renowned for its historical role in the Gold Rush and its popular whitewater rafting runs.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
river
ⓘ
tributary ⓘ |
| contributesTo |
hydropower generation in the Feather River system
ⓘ
water supply of Lake Oroville ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| drainageBasin | Sacramento River Basin ⓘ |
| flowsInto | Lake Oroville ⓘ |
| hasDesignation |
National Wild and Scenic River
ⓘ
linked to:
National Wild and Scenic Rivers System units
|
| hasFeature |
remote wilderness sections
ⓘ
steep granite canyons ⓘ |
| knownFor |
deep canyon landscapes
ⓘ
scenic values ⓘ whitewater boating ⓘ |
| locatedIn |
Butte County, California
ⓘ
linked to:
Butte County
California ⓘ
linked to:
California, United States
Plumas County, California ⓘ Sierra Nevada ⓘ |
| majorTributaryOf | Feather River ⓘ |
| mouthElevation | about 900 feet ⓘ |
| mouthLocation | Lake Oroville ⓘ |
| partOf |
Feather River
ⓘ
National Wild and Scenic Rivers System ⓘ
linked to:
National Wild and Scenic Rivers System units
Sacramento River watershed ⓘ
linked to:
Sacramento River Basin
|
| sourceLocation |
Sierra Nevada, California
ⓘ
linked to:
Sierra Nevada
|
| sourceRegion | northern Sierra Nevada ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| usedFor |
fishing
ⓘ
recreation ⓘ whitewater rafting ⓘ |
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: Middle Fork Feather River Description of subject: The Middle Fork Feather River is a major tributary of California’s Feather River system, flowing through the northern Sierra Nevada and contributing significant water and scenic canyon landscapes before reaching Lake Oroville.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.