Llewellyn Glacier
E348229
Llewellyn Glacier is a large valley glacier in the Juneau Icefield region of northwestern British Columbia and southeastern Alaska, known for its extensive ice flows and retreating terminus.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Llewellyn Glacier canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1695268 — 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: Llewellyn Glacier Context triple: [Juneau Icefield, feeds, Llewellyn Glacier]
-
A.
Lyell Glacier
Lyell Glacier is a rapidly retreating mountain glacier in Yosemite National Park, historically the largest glacier in the park and situated on the slopes of Mount Lyell in the Sierra Nevada of California.
-
B.
Walton Glacier
Walton Glacier is a mountain glacier associated with Oregon’s Mount Jefferson in the Cascade Range.
-
C.
Linton Glacier
Linton Glacier is a glacier located on the slopes of the Three Sisters volcanic peaks in the Cascade Range of Oregon, known for its alpine ice and role in local hydrology.
-
D.
Haynes Glacier
Haynes Glacier is a large Antarctic glacier that drains into the Amundsen Sea along the coast of West Antarctica.
-
E.
Collier Glacier
Collier Glacier is a mountain glacier located on the slopes of the Three Sisters volcanic peaks in the Cascade Range of Oregon, known as one of the larger remaining glaciers in the state.
- 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: Llewellyn Glacier Target entity description: Llewellyn Glacier is a large valley glacier in the Juneau Icefield region of northwestern British Columbia and southeastern Alaska, known for its extensive ice flows and retreating terminus.
-
A.
Lyell Glacier
Lyell Glacier is a rapidly retreating mountain glacier in Yosemite National Park, historically the largest glacier in the park and situated on the slopes of Mount Lyell in the Sierra Nevada of California.
-
B.
Walton Glacier
Walton Glacier is a mountain glacier associated with Oregon’s Mount Jefferson in the Cascade Range.
-
C.
Linton Glacier
Linton Glacier is a glacier located on the slopes of the Three Sisters volcanic peaks in the Cascade Range of Oregon, known for its alpine ice and role in local hydrology.
-
D.
Haynes Glacier
Haynes Glacier is a large Antarctic glacier that drains into the Amundsen Sea along the coast of West Antarctica.
-
E.
Collier Glacier
Collier Glacier is a mountain glacier located on the slopes of the Three Sisters volcanic peaks in the Cascade Range of Oregon, known as one of the larger remaining glaciers in the state.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
glacier
ⓘ
valley glacier ⓘ |
| borderStraddles |
Alaska–British Columbia border
ⓘ
surface form:
British Columbia–Alaska border
|
| country |
Canada
ⓘ
United States of America ⓘ |
| drainsInto | Atlin Lake ⓘ |
| flowsFrom | Juneau Icefield ⓘ |
| forms | proglacial lake at its terminus ⓘ |
| hasFeature |
extensive ice flows
ⓘ
retreating terminus ⓘ |
| hasGlacialLakeAtTerminus | Llewellyn Inlet (arm of Atlin Lake) ⓘ |
| hasHazard | glacial lake outburst flood risk ⓘ |
| hasMovementDirection | generally southward toward Atlin Lake ⓘ |
| hasObservation | terminus retreat documented over the 20th and 21st centuries ⓘ |
| hasProcess |
calving into proglacial lake
ⓘ
ice flow ⓘ surface melting ⓘ |
| hasSeasonalVariation | summer melt and winter accumulation ⓘ |
| hasStatus | retreating ⓘ |
| hasSurfaceType | ice and firn ⓘ |
| hasTerminus | Atlin Lake ⓘ |
| hasType | outlet glacier of Juneau Icefield ⓘ |
| isAccessibleFrom |
Atlin Lake region in British Columbia
ⓘ
surface form:
Atlin, British Columbia
|
| isConnectedTo |
Juneau Icefield
ⓘ
surface form:
Juneau Icefield glacial system
|
| isInfluencedBy |
maritime climate of the Pacific coast
ⓘ
regional temperature increase ⓘ |
| isMonitoredFor | climate change impacts ⓘ |
| isOneOf | largest glaciers flowing into Atlin Lake ⓘ |
| isPartOf |
Coastal mountain glaciers of Alaska
ⓘ
surface form:
North American coastal glaciers
|
| isRetreating | true ⓘ |
| isSubjectOf |
field-based glaciological measurements
ⓘ
remote sensing studies ⓘ |
| isTemperateGlacier | true ⓘ |
| locatedIn |
Juneau Icefield
ⓘ
northwestern British Columbia ⓘ southeastern Alaska ⓘ |
| namedAfter | Llewellyn family (local settlers) ⓘ |
| partOf |
Stikine Region
ⓘ
surface form:
Atlin-Taku region
Coast Mountains ⓘ |
| region | southeastern Alaska Panhandle ⓘ |
| usedFor |
climate change studies
ⓘ
glaciological research ⓘ recreation and tourism ⓘ |
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: Llewellyn Glacier Description of subject: Llewellyn Glacier is a large valley glacier in the Juneau Icefield region of northwestern British Columbia and southeastern Alaska, known for its extensive ice flows and retreating terminus.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.