North Saddle of Everest
E559649
North Saddle of Everest is a high glaciated pass between Mount Everest and Changtse on the mountain’s north side, serving as the key access point for climbers ascending via the North Col route from Tibet.
All labels observed (1)
| Label | Occurrences |
|---|---|
| North Saddle of Everest canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5910108 — 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 Saddle of Everest Context triple: [North Col, alternativeName, North Saddle of Everest]
-
A.
Lhotse Face
Lhotse Face is a steep, glaciated wall of ice and rock on the western flank of Lhotse that forms a key and notoriously challenging section of the standard climbing route to the summit of Mount Everest.
-
B.
North Ridge of K2
The North Ridge of K2 is a major, technically demanding climbing route on the world’s second-highest mountain, rising from the Chinese side and known for its extreme altitude, exposure, and objective hazards.
-
C.
Whymper summit
Whymper summit is the principal peak of Ecuador’s Chimborazo volcano, notable for being one of the farthest points from Earth’s center due to the planet’s equatorial bulge.
-
D.
Borah Peak
Borah Peak is the tallest mountain in Idaho, known for its rugged terrain and prominence in the Lost River Range.
-
E.
Puncak Pass
Puncak Pass is a popular highland resort area in West Java, Indonesia, known for its cool climate, tea plantations, and scenic mountain views.
- 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 Saddle of Everest Target entity description: North Saddle of Everest is a high glaciated pass between Mount Everest and Changtse on the mountain’s north side, serving as the key access point for climbers ascending via the North Col route from Tibet.
-
A.
Lhotse Face
Lhotse Face is a steep, glaciated wall of ice and rock on the western flank of Lhotse that forms a key and notoriously challenging section of the standard climbing route to the summit of Mount Everest.
-
B.
North Ridge of K2
The North Ridge of K2 is a major, technically demanding climbing route on the world’s second-highest mountain, rising from the Chinese side and known for its extreme altitude, exposure, and objective hazards.
-
C.
Whymper summit
Whymper summit is the principal peak of Ecuador’s Chimborazo volcano, notable for being one of the farthest points from Earth’s center due to the planet’s equatorial bulge.
-
D.
Borah Peak
Borah Peak is the tallest mountain in Idaho, known for its rugged terrain and prominence in the Lost River Range.
-
E.
Puncak Pass
Puncak Pass is a popular highland resort area in West Java, Indonesia, known for its cool climate, tea plantations, and scenic mountain views.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
glaciated pass ⓘ mountain pass ⓘ |
| accessedFrom |
Chinese north side Everest Base Camp
ⓘ
linked to:
Everest North Base Camp
Tibet ⓘ |
| alternateName | North Col ⓘ |
| climbingRouteDifficulty | high altitude ⓘ |
| connectsTo |
East Rongbuk Glacier
ⓘ
Northeast Ridge of Mount Everest ⓘ |
| countryClaim | China ⓘ |
| elevation |
approximately 23000 ft
ⓘ
approximately 7000 m ⓘ |
| firstMajorStepOnRouteTo |
Everest Northeast Ridge
ⓘ
linked to:
Northeast Ridge of Mount Everest
|
| hasFeature |
fixed ropes during climbing season
ⓘ
steep ice slopes ⓘ |
| isKeyAccessPointFor | climbers ascending Mount Everest via the North Col route from Tibet ⓘ |
| locatedBetween |
Changtse
ⓘ
Mount Everest ⓘ |
| locatedIn |
China
ⓘ
Himalayas ⓘ Tibet Autonomous Region ⓘ |
| locatedOn | Mount Everest ⓘ |
| locatedOnSideOf | north side of Mount Everest ⓘ |
| near | Tibetan Plateau ⓘ |
| overlooks | East Rongbuk Glacier ⓘ |
| partOfRoute |
North Col route on Mount Everest
ⓘ
linked to:
Mount Everest North Col route
|
| surfaceType | glacier ⓘ |
| typicalUse | high camp location for Everest north side ascents ⓘ |
| usedFor |
access to Northeast Ridge of Everest
ⓘ
mountaineering ⓘ |
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 Saddle of Everest Description of subject: North Saddle of Everest is a high glaciated pass between Mount Everest and Changtse on the mountain’s north side, serving as the key access point for climbers ascending via the North Col route from Tibet.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.