Mountain Island Lake
E567813
Mountain Island Lake is a man-made reservoir on the Catawba River in North Carolina, primarily used for drinking water supply, recreation, and hydroelectric power generation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mountain Island Lake canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2905367 — 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: Mountain Island Lake Context triple: [Catawba River, hasReservoir, Mountain Island Lake]
-
A.
Fairview Lake
Fairview Lake is a small recreational and residential lake located in the city of Fairview in Multnomah County, Oregon.
-
B.
Island Lake
Island Lake is a scenic alpine lake nestled within Nevada’s Ruby Mountains, known for its clear waters and surrounding rugged peaks.
-
C.
Jones Lake
Jones Lake is a shallow, oval-shaped Carolina bay and state park lake in southeastern North Carolina known for its tea-colored water and recreational opportunities.
-
D.
Hoyt Lake
Hoyt Lake is a scenic man-made lake in Buffalo, New York, known as a central feature of the historic, Olmsted-designed Delaware Park.
-
E.
Mason Lake
Mason Lake is a freshwater lake in western Washington State known for recreational activities such as boating, fishing, and lakeside cabin retreats.
- 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: Mountain Island Lake Target entity description: Mountain Island Lake is a man-made reservoir on the Catawba River in North Carolina, primarily used for drinking water supply, recreation, and hydroelectric power generation.
-
A.
Fairview Lake
Fairview Lake is a small recreational and residential lake located in the city of Fairview in Multnomah County, Oregon.
-
B.
Island Lake
Island Lake is a scenic alpine lake nestled within Nevada’s Ruby Mountains, known for its clear waters and surrounding rugged peaks.
-
C.
Jones Lake
Jones Lake is a shallow, oval-shaped Carolina bay and state park lake in southeastern North Carolina known for its tea-colored water and recreational opportunities.
-
D.
Hoyt Lake
Hoyt Lake is a scenic man-made lake in Buffalo, New York, known as a central feature of the historic, Olmsted-designed Delaware Park.
-
E.
Mason Lake
Mason Lake is a freshwater lake in western Washington State known for recreational activities such as boating, fishing, and lakeside cabin retreats.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
body of water
ⓘ
reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| createdBy | impoundment of the Catawba River ⓘ |
| ecologicalRole |
habitat for fish and aquatic species
ⓘ
habitat for migratory birds ⓘ |
| energyUseType | hydroelectric power production ⓘ |
| formedBy | Mountain Island Dam on the Catawba River NERFINISHED ⓘ |
| hasDam | Mountain Island Dam NERFINISHED ⓘ |
| hasIsland | Mountain Island NERFINISHED ⓘ |
| hasRecreationArea |
fishing access areas
ⓘ
public boat ramps ⓘ |
| hasRegulation |
boating regulations
ⓘ
drinking water protection regulations ⓘ fishing regulations ⓘ |
| hasShorelineUse |
conservation land
ⓘ
residential development ⓘ |
| isDownstreamOf | Lake Norman NERFINISHED ⓘ |
| isUpstreamOf | Lake Wylie NERFINISHED ⓘ |
| locatedIn |
North Carolina
ⓘ
United States of America ⓘ
surface form:
United States
|
| locatedInCounty |
Gaston County, North Carolina
NERFINISHED
ⓘ
Lincoln County, North Carolina NERFINISHED ⓘ Mecklenburg County, North Carolina NERFINISHED ⓘ |
| locatedOnRiver | Catawba River NERFINISHED ⓘ |
| managingOrganization | Duke Energy NERFINISHED ⓘ |
| nearCity |
Charlotte, North Carolina
NERFINISHED
ⓘ
Huntersville, North Carolina NERFINISHED ⓘ Mount Holly, North Carolina NERFINISHED ⓘ |
| operatorOfDam | Duke Energy NERFINISHED ⓘ |
| partOf |
Catawba River system
NERFINISHED
ⓘ
Catawba-Wateree Hydroelectric Project NERFINISHED ⓘ |
| primaryUse |
drinking water supply
ⓘ
hydroelectric power generation ⓘ recreation ⓘ |
| region | Piedmont region of North Carolina NERFINISHED ⓘ |
| state | North Carolina NERFINISHED ⓘ |
| usedFor |
boating
ⓘ
fishing ⓘ swimming ⓘ wildlife habitat ⓘ |
| waterQualityImportance | primary drinking water source for Charlotte region ⓘ |
| waterSourceFor |
Charlotte, North Carolina metropolitan area
NERFINISHED
ⓘ
Gaston County, North Carolina NERFINISHED ⓘ Mecklenburg County, North Carolina NERFINISHED ⓘ |
| waterUseType |
industrial water supply
ⓘ
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: Mountain Island Lake Description of subject: Mountain Island Lake is a man-made reservoir on the Catawba River in North Carolina, primarily used for drinking water supply, recreation, and hydroelectric power generation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.