San Joaquin River
E23721
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.
All labels observed (5)
| Label | Occurrences |
|---|---|
| San Joaquin River canonical | 79 |
| San Joaquin River watershed | 2 |
| San Joaquin River (during extreme floods) | 1 |
| San Joaquin River Basin | 1 |
| San Joaquin River headwaters | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12028 — 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.
Target entity: San Joaquin River Context triple: [Sierra Nevada, majorRiverSource, San Joaquin River]
-
A.
Sacramento–San Joaquin River Delta
The Sacramento–San Joaquin River Delta is a vast inland estuarine network of rivers, channels, and wetlands in Northern California that forms the state’s largest freshwater tidal ecosystem and a critical hub for its water supply and agriculture.
-
B.
Columbia River
The Columbia River is a major river of the Pacific Northwest that forms much of the border between Oregon and Washington and is vital for hydroelectric power, transportation, and regional ecosystems.
-
C.
Saugus River
The Saugus River is a coastal river in northeastern Massachusetts that flows through communities including Saugus and Lynn before emptying into the Atlantic Ocean.
-
D.
Missouri River
The Missouri River is the longest river in North America, flowing from the Rocky Mountains of western Montana to join the Mississippi River near St. Louis.
-
E.
Amargosa River basin
The Amargosa River basin is an arid watershed in the Mojave Desert known for its intermittent river, unique desert ecosystems, and rare oases supporting specialized wildlife.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: San Joaquin River Target entity description: 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.
-
A.
Sacramento–San Joaquin River Delta
The Sacramento–San Joaquin River Delta is a vast inland estuarine network of rivers, channels, and wetlands in Northern California that forms the state’s largest freshwater tidal ecosystem and a critical hub for its water supply and agriculture.
-
B.
Columbia River
The Columbia River is a major river of the Pacific Northwest that forms much of the border between Oregon and Washington and is vital for hydroelectric power, transportation, and regional ecosystems.
-
C.
Saugus River
The Saugus River is a coastal river in northeastern Massachusetts that flows through communities including Saugus and Lynn before emptying into the Atlantic Ocean.
-
D.
Missouri River
The Missouri River is the longest river in North America, flowing from the Rocky Mountains of western Montana to join the Mississippi River near St. Louis.
-
E.
Amargosa River basin
The Amargosa River basin is an arid watershed in the Mojave Desert known for its intermittent river, unique desert ecosystems, and rare oases supporting specialized wildlife.
- F. None of above. chosen
Statements (54)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinArea |
about 12,000 square miles
ⓘ
about 32,000 square kilometers ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| connectedTo |
California Aqueduct
ⓘ
surface form:
California Aqueduct (via associated projects and diversions)
|
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses |
San Joaquin Valley
ⓘ
surface form:
San Joaquin Valley floor
|
| emptiesInto |
Sacramento–San Joaquin River Delta
ⓘ
surface form:
Sacramento–San Joaquin Delta
|
| environmentalIssue |
fish habitat loss
ⓘ
reduced flows due to diversions ⓘ water quality degradation ⓘ |
| flowsThrough |
Fresno County
ⓘ
surface form:
Fresno County, California
Fresno ⓘ
surface form:
Fresno, California metropolitan area
Madera County, California ⓘ Merced County ⓘ
surface form:
Merced County, California
San Joaquin County ⓘ
surface form:
San Joaquin County, California
San Joaquin Valley ⓘ Stanislaus County ⓘ
surface form:
Stanislaus County, California
near Stockton, California ⓘ |
| hasDam | Friant Dam ⓘ |
| hasEstuary | part of the Sacramento–San Joaquin Delta estuary ⓘ |
| hasTributary |
Merced River
ⓘ
Mokelumne River ⓘ Stanislaus River ⓘ Tuolumne River ⓘ |
| historicallyInhabitedBy |
Chinook salmon
ⓘ
steelhead trout ⓘ |
| length |
about 227 miles
ⓘ
about 366 kilometers ⓘ |
| locatedIn | Central California ⓘ |
| mouth |
Sacramento–San Joaquin River Delta
ⓘ
surface form:
Sacramento–San Joaquin Delta
|
| mouthLocation |
Contra Costa County
ⓘ
surface form:
Contra Costa County, California
|
| namedAfter |
Saint Joachim
ⓘ
surface form:
San Joaquín (Saint Joachim)
|
| partOf |
California water supply system
ⓘ
Sacramento River and San Joaquin River ⓘ
surface form:
Sacramento–San Joaquin River system
|
| region |
Central Valley
ⓘ
surface form:
California Central Valley
|
| reservoirCreatedByDam | Millerton Lake ⓘ |
| sourceLocation |
Ansel Adams Wilderness
ⓘ
Madera County, California ⓘ Sierra Nevada ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| subjectOf | San Joaquin River Restoration Program ⓘ |
| supports |
extensive agriculture in the San Joaquin Valley
ⓘ
riparian habitats ⓘ wetland ecosystems ⓘ |
| tributary |
Kings River
ⓘ
surface form:
Kings River (via distributary and historical connection)
Merced River ⓘ Mokelumne River ⓘ Stanislaus River ⓘ Tuolumne River ⓘ |
| usedFor |
hydroelectric power generation
ⓘ
irrigation ⓘ municipal water supply ⓘ recreation ⓘ |
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.
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.
Subject: San Joaquin River Description of subject: 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.
Referenced by (84)
Full triples — surface form annotated when it differs from this entity's canonical label.