North Col
E131436
North Col is a high mountain pass and prominent saddle on the northern side of Mount Everest, commonly used as a key staging point for climbers ascending via the North Ridge route.
All labels observed (2)
| Label | Occurrences |
|---|---|
| North Col canonical | 7 |
| North Col high camp system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1114096 — 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: North Col Context triple: [Mount Everest, hasFeature, North Col]
-
A.
South Col
South Col is the high-altitude mountain pass between Mount Everest and Lhotse that serves as the traditional final camp site for climbers attempting Everest’s summit via the Southeast Ridge.
-
B.
North Palisade
North Palisade is one of the highest and most prominent peaks in California’s Sierra Nevada, renowned among mountaineers for its rugged alpine terrain and challenging climbing routes.
-
C.
Innominata Ridge
Innominata Ridge is a classic, exposed alpine climbing route on the Italian (south) side of Mont Blanc, known for its mixed rock-and-ice terrain and sustained difficulty.
-
D.
North Highlands
North Highlands is a suburban community in Northern California known primarily as a residential area within the greater Sacramento metropolitan region.
-
E.
Spruce Hill
Spruce Hill is a primarily residential neighborhood in West Philadelphia known for its historic Victorian architecture and proximity to the University of Pennsylvania.
- 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: North Col Target entity description: North Col is a high mountain pass and prominent saddle on the northern side of Mount Everest, commonly used as a key staging point for climbers ascending via the North Ridge route.
-
A.
South Col
South Col is the high-altitude mountain pass between Mount Everest and Lhotse that serves as the traditional final camp site for climbers attempting Everest’s summit via the Southeast Ridge.
-
B.
North Palisade
North Palisade is one of the highest and most prominent peaks in California’s Sierra Nevada, renowned among mountaineers for its rugged alpine terrain and challenging climbing routes.
-
C.
Innominata Ridge
Innominata Ridge is a classic, exposed alpine climbing route on the Italian (south) side of Mont Blanc, known for its mixed rock-and-ice terrain and sustained difficulty.
-
D.
North Highlands
North Highlands is a suburban community in Northern California known primarily as a residential area within the greater Sacramento metropolitan region.
-
E.
Spruce Hill
Spruce Hill is a primarily residential neighborhood in West Philadelphia known for its historic Victorian architecture and proximity to the University of Pennsylvania.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
glacial col
ⓘ
mountain pass ⓘ |
| accessedFrom | East Rongbuk Glacier ⓘ |
| alternativeName | North Saddle of Everest ⓘ |
| approachFromBaseCamp | via Interim Camp and Advanced Base Camp on East Rongbuk Glacier ⓘ |
| climbingUse | acclimatization camp for high-altitude climbing ⓘ |
| connects |
East Rongbuk Glacier
ⓘ
North Face of Mount Everest ⓘ
linked to:
north face of Mount Everest
|
| continent | Asia ⓘ |
| country | China ⓘ |
| elevation |
about 23000 feet above sea level
ⓘ
about 7000 metres above sea level ⓘ |
| featureOf |
North Col–North Ridge–Northeast Ridge route
ⓘ
linked to:
Northeast Ridge route
|
| firstAscendedBy |
George Mallory
ⓘ
linked to:
George Leigh-Mallory
Guy Bullock ⓘ |
| firstAscendedDuring | 1921 British Mount Everest reconnaissance expedition ⓘ |
| firstAscent | 1921 ⓘ |
| forms | lowest point on the ridge between Everest and Changtse ⓘ |
| hazard |
avalanche risk on approach slopes
ⓘ
exposure to high winds ⓘ risk of severe cold ⓘ |
| languageOfToponym | English ⓘ |
| locatedIn |
China
ⓘ
Himalayas ⓘ Mahalangur Himal ⓘ Tibet Autonomous Region ⓘ |
| locatedOn | Mount Everest ⓘ |
| near |
Tibet–Nepal border
ⓘ
linked to:
Nepal–China border
|
| partOfRoute | North Ridge route on Mount Everest ⓘ |
| positionOnEverest | north side of Mount Everest ⓘ |
| relativeLocation | between Everest’s North Face and Changtse ⓘ |
| typicalCampNumber | Camp I on the north side of Everest ⓘ |
| typicalRoleInExpedition | launch point for summit attempts via North Ridge ⓘ |
| usedAs |
high camp location for Everest expeditions
ⓘ
key staging point for Everest climbers ⓘ |
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: North Col Description of subject: North Col is a high mountain pass and prominent saddle on the northern side of Mount Everest, commonly used as a key staging point for climbers ascending via the North Ridge route.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: North Col