Haweswater Reservoir
E518450
Haweswater Reservoir is a large man-made lake in the Lake District of Cumbria, England, created for water supply and known for its scenic yet controversial flooding of the former village of Mardale.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Haweswater | 1 |
| Haweswater Reservoir canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5408267 — 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: Haweswater Reservoir Context triple: [Cumbrian Mountains, overlooks, Haweswater Reservoir]
-
A.
Keswick Reservoir
Keswick Reservoir is a man-made lake on the Sacramento River in Northern California, primarily serving as a regulating reservoir for Shasta Dam’s hydroelectric operations and regional water management.
-
B.
Abbeystead Reservoir
Abbeystead Reservoir is a man-made lake in Lancashire, England, known for its scenic setting within the Forest of Bowland and its role in regional water supply.
-
C.
Ladybower Reservoir
Ladybower Reservoir is a large Y-shaped drinking-water reservoir in the Upper Derwent Valley of Derbyshire, England, known for its distinctive plughole spillways and surrounding Peak District scenery.
-
D.
Derwent Reservoir
Derwent Reservoir is a large man-made lake in Derbyshire, England, best known for its scenic surroundings in the Peak District and its historical association with the World War II "Dambusters" training flights.
-
E.
Garreg Ddu Reservoir
Garreg Ddu Reservoir is a scenic man-made lake in the Elan Valley of mid-Wales, known for its distinctive submerged dam and role in supplying water to the city of Birmingham.
- 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: Haweswater Reservoir Target entity description: Haweswater Reservoir is a large man-made lake in the Lake District of Cumbria, England, created for water supply and known for its scenic yet controversial flooding of the former village of Mardale.
-
A.
Keswick Reservoir
Keswick Reservoir is a man-made lake on the Sacramento River in Northern California, primarily serving as a regulating reservoir for Shasta Dam’s hydroelectric operations and regional water management.
-
B.
Abbeystead Reservoir
Abbeystead Reservoir is a man-made lake in Lancashire, England, known for its scenic setting within the Forest of Bowland and its role in regional water supply.
-
C.
Ladybower Reservoir
Ladybower Reservoir is a large Y-shaped drinking-water reservoir in the Upper Derwent Valley of Derbyshire, England, known for its distinctive plughole spillways and surrounding Peak District scenery.
-
D.
Derwent Reservoir
Derwent Reservoir is a large man-made lake in Derbyshire, England, best known for its scenic surroundings in the Peak District and its historical association with the World War II "Dambusters" training flights.
-
E.
Garreg Ddu Reservoir
Garreg Ddu Reservoir is a scenic man-made lake in the Elan Valley of mid-Wales, known for its distinctive submerged dam and role in supplying water to the city of Birmingham.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| accessibleVia | minor road from Bampton ⓘ |
| basinCountry | United Kingdom ⓘ |
| constructionBegan | 1929 ⓘ |
| controversy |
displacement of local residents
ⓘ
flooding of Mardale Green village ⓘ |
| country | England ⓘ |
| createdBy | construction of a dam ⓘ |
| createdFor |
drinking water supply to North West England
ⓘ
public water supply ⓘ |
| damHeight | 27.5 metres ⓘ |
| damLength | 470 metres ⓘ |
| damType | concrete dam ⓘ |
| ecologicalSignificance | important habitat for upland birds ⓘ |
| elevationAboveSeaLevel | about 240 metres ⓘ |
| formedByFlooding | Mardale valley NERFINISHED ⓘ |
| hasNearbySettlement |
Bampton
NERFINISHED
ⓘ
Burnbanks NERFINISHED ⓘ |
| inflow |
Mardale Beck
NERFINISHED
ⓘ
Riggindale Beck NERFINISHED ⓘ |
| knownFor |
controversial creation
ⓘ
remote and quiet character compared to other Lake District lakes ⓘ scenic landscape ⓘ |
| locatedIn |
Cumbria
ⓘ
Lake District ⓘ North West England ⓘ |
| locatedInProtectedArea | Lake District National Park NERFINISHED ⓘ |
| maximumDepth | approximately 60 metres ⓘ |
| nearbyFell |
Harter Fell
NERFINISHED
ⓘ
High Street NERFINISHED ⓘ Kidsty Pike NERFINISHED ⓘ Mardale Ill Bell NERFINISHED ⓘ |
| nearbyValley | Riggindale NERFINISHED ⓘ |
| opened | 1935 ⓘ |
| operator | United Utilities NERFINISHED ⓘ |
| outflow |
Haweswater Beck
NERFINISHED
ⓘ
River Lowther NERFINISHED ⓘ |
| owner | United Utilities NERFINISHED ⓘ |
| recreation |
birdwatching
ⓘ
limited fishing ⓘ walking ⓘ |
| submergedBuilding |
Dun Bull Inn
NERFINISHED
ⓘ
Holy Trinity Church, Mardale NERFINISHED ⓘ |
| submergedSettlement | Mardale Green NERFINISHED ⓘ |
| suppliesWaterTo |
Manchester
NERFINISHED
ⓘ
North West England NERFINISHED ⓘ |
| surfaceArea | approximately 3.9 square kilometres ⓘ |
| volume | approximately 84 million cubic metres ⓘ |
| watercourse | River Lowther 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: Haweswater Reservoir Description of subject: Haweswater Reservoir is a large man-made lake in the Lake District of Cumbria, England, created for water supply and known for its scenic yet controversial flooding of the former village of Mardale.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Haweswater