Calaveras River
E220939
The Calaveras River is a tributary of the San Joaquin River in California’s Central Valley, flowing from the Sierra Nevada foothills through urban and agricultural areas before joining the main river system.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Calaveras River canonical | 5 |
| Calaveras River watershed | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T959299 — 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: Calaveras River Context triple: [San Joaquin County, hasMajorRiver, Calaveras River]
-
A.
Napa River
The Napa River is a major waterway in Northern California that flows through Napa Valley, supporting its renowned wine-growing region and local ecosystems before emptying into San Pablo Bay.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- 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: Calaveras River Target entity description: The Calaveras River is a tributary of the San Joaquin River in California’s Central Valley, flowing from the Sierra Nevada foothills through urban and agricultural areas before joining the main river system.
-
A.
Napa River
The Napa River is a major waterway in Northern California that flows through Napa Valley, supporting its renowned wine-growing region and local ecosystems before emptying into San Pablo Bay.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses |
Stockton
ⓘ
surface form:
City of Stockton
|
| flowsThrough |
Stockton
ⓘ
surface form:
Stockton, California
agricultural areas ⓘ urban areas ⓘ |
| hasBridge | multiple road bridges in Stockton ⓘ |
| hasDam | New Hogan Dam ⓘ |
| hasEcologicalConcern |
fish habitat
ⓘ
water quality ⓘ |
| hasFloodRisk |
Stockton–Lodi metropolitan area
ⓘ
surface form:
Stockton metropolitan area
|
| hasNameEtymology | derived from Spanish word "calaveras" meaning "skulls" ⓘ |
| hasWatershed | Calaveras River watershed ⓘ |
| locatedIn |
Calaveras County
ⓘ
California, United States ⓘ
surface form:
California
Central Valley ⓘ San Joaquin County NERFINISHED ⓘ Sierra Nevada foothills ⓘ Stanislaus County NERFINISHED ⓘ |
| managedBy |
U.S. Army Corps of Engineers (New Hogan Dam and Lake)
ⓘ
local irrigation districts ⓘ |
| managesFloodControlFor |
Calaveras River
self-linksurface differs
ⓘ
surface form:
Calaveras River watershed
|
| mouthLocation | San Joaquin River ⓘ |
| partOf |
San Joaquin River Basin
ⓘ
surface form:
California Central Valley hydrologic system
|
| recreation |
boating on New Hogan Lake
ⓘ
fishing ⓘ |
| region | Northern California ⓘ |
| reservoir | New Hogan Lake ⓘ |
| riverSystem |
San Joaquin River Basin
ⓘ
surface form:
San Joaquin River basin
|
| sourceRegion | Sierra Nevada foothills ⓘ |
| tributaryOf | San Joaquin River ⓘ |
| usedFor |
irrigation
ⓘ
municipal water supply ⓘ |
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: Calaveras River Description of subject: The Calaveras River is a tributary of the San Joaquin River in California’s Central Valley, flowing from the Sierra Nevada foothills through urban and agricultural areas before joining the main river system.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Calaveras River watershed