New Melones Lake
E703542
New Melones Lake is a large man-made reservoir in California’s Sierra Nevada foothills, popular for recreation and water storage as part of the Central Valley Project.
All labels observed (1)
| Label | Occurrences |
|---|---|
| New Melones Lake canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T7822430 — 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: New Melones Lake Context triple: [Sierra Nevada river system, feedsReservoir, New Melones Lake]
-
A.
New Melones Dam
New Melones Dam is a large multipurpose reservoir and hydroelectric facility on the Stanislaus River in California, providing water storage, flood control, and power generation.
-
B.
Calaveras Reservoir
Calaveras Reservoir is a major water storage reservoir in California’s Diablo Range that supplies drinking water to the San Francisco Bay Area.
-
C.
Merced Lake
Merced Lake is a high-country lake in Yosemite National Park, known as a scenic backcountry destination along the Merced River and a popular stop for backpackers.
-
D.
Pardee Reservoir
Pardee Reservoir is a man-made lake in the Sierra Nevada foothills of California that serves as a major water storage and supply source for the East Bay region.
-
E.
Yuba Reservoir
Yuba Reservoir is a man-made lake in central Utah popular for boating, fishing, and camping.
- 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: New Melones Lake Target entity description: New Melones Lake is a large man-made reservoir in California’s Sierra Nevada foothills, popular for recreation and water storage as part of the Central Valley Project.
-
A.
New Melones Dam
New Melones Dam is a large multipurpose reservoir and hydroelectric facility on the Stanislaus River in California, providing water storage, flood control, and power generation.
-
B.
Calaveras Reservoir
Calaveras Reservoir is a major water storage reservoir in California’s Diablo Range that supplies drinking water to the San Francisco Bay Area.
-
C.
Merced Lake
Merced Lake is a high-country lake in Yosemite National Park, known as a scenic backcountry destination along the Merced River and a popular stop for backpackers.
-
D.
Pardee Reservoir
Pardee Reservoir is a man-made lake in the Sierra Nevada foothills of California that serves as a major water storage and supply source for the East Bay region.
-
E.
Yuba Reservoir
Yuba Reservoir is a man-made lake in central Utah popular for boating, fishing, and camping.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionCompleted | late 1970s ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdBy | New Melones Dam NERFINISHED ⓘ |
| formedBy | impoundment of the Stanislaus River ⓘ |
| hasDam | New Melones Dam NERFINISHED ⓘ |
| hasFeature |
boat ramps
ⓘ
campgrounds ⓘ day-use areas ⓘ marinas ⓘ |
| hasShoreline | extensive shoreline suitable for recreation ⓘ |
| inflow | Stanislaus River NERFINISHED ⓘ |
| isManagedAs | multi-purpose reservoir ⓘ |
| isPopularFor | outdoor recreation ⓘ |
| isSubjectOf | water management debates in California ⓘ |
| locatedIn |
Calaveras County, California
NERFINISHED
ⓘ
California, United States ⓘ
surface form:
California
Sierra Nevada foothills ⓘ Sierra Nevada, California NERFINISHED ⓘ Tuolumne County, California NERFINISHED ⓘ |
| locatedNear |
Angels Camp, California
NERFINISHED
ⓘ
Sonora, California NERFINISHED ⓘ |
| locatedOnRiver | Stanislaus River NERFINISHED ⓘ |
| managingAgency | United States Bureau of Reclamation NERFINISHED ⓘ |
| maximumCapacity | about 2,400,000 acre-feet ⓘ |
| outflow | Stanislaus River NERFINISHED ⓘ |
| partOf | Central Valley Project NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ recreation ⓘ water storage ⓘ |
| recreationActivity |
boating
ⓘ
camping ⓘ fishing ⓘ hiking ⓘ swimming ⓘ water skiing ⓘ |
| region | San Joaquin Valley watershed NERFINISHED ⓘ |
| replaced | Old Melones reservoir NERFINISHED ⓘ |
| uses |
irrigation water supply
ⓘ
municipal water supply ⓘ |
| watercourse | Stanislaus River NERFINISHED ⓘ |
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: New Melones Lake Description of subject: New Melones Lake is a large man-made reservoir in California’s Sierra Nevada foothills, popular for recreation and water storage as part of the Central Valley Project.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.