Southeast Ridge of Mount Everest
E594768
The Southeast Ridge of Mount Everest is the classic high-altitude ridgeline leading from the South Col to the summit, forming the final and most famous section of the standard climbing route on the mountain’s south side.
All labels observed (3)
| Label | Occurrences |
|---|---|
| South Col route on Mount Everest | 2 |
| Everest Southeast Ridge | 1 |
| Southeast Ridge of Mount Everest canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6430109 — 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: Southeast Ridge of Mount Everest Context triple: [South Col route, ascendsVia, Southeast Ridge of Mount Everest]
-
A.
North Saddle of Everest
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.
-
B.
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.
-
C.
South-Southeast Ridge of K2
The South-Southeast Ridge of K2, commonly known as the Cesen Route, is a major climbing line on the world’s second-highest mountain that offers a slightly less technical but still highly dangerous alternative to the Abruzzi Spur.
-
D.
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.
-
E.
Saltoro Ridge
Saltoro Ridge is a strategically significant mountain range in the eastern Karakoram, forming part of the disputed Siachen region between India and Pakistan.
- 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: Southeast Ridge of Mount Everest Target entity description: The Southeast Ridge of Mount Everest is the classic high-altitude ridgeline leading from the South Col to the summit, forming the final and most famous section of the standard climbing route on the mountain’s south side.
-
A.
North Saddle of Everest
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.
-
B.
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.
-
C.
South-Southeast Ridge of K2
The South-Southeast Ridge of K2, commonly known as the Cesen Route, is a major climbing line on the world’s second-highest mountain that offers a slightly less technical but still highly dangerous alternative to the Abruzzi Spur.
-
D.
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.
-
E.
Saltoro Ridge
Saltoro Ridge is a strategically significant mountain range in the eastern Karakoram, forming part of the disputed Siachen region between India and Pakistan.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
climbing route section
ⓘ
mountain ridge ⓘ |
| alsoKnownAs | upper Southeast Ridge route ⓘ |
| approximateSummitDayDuration | 8–18 hours round trip depending on conditions ⓘ |
| approximateSummitDayVerticalGain | 900–1000 metres ⓘ |
| climbedWith | fixed ropes ⓘ |
| climbingSeason | pre-monsoon (spring) ⓘ |
| climbingStyleCommon | guided commercial expeditions ⓘ |
| commonlyUsedEquipment | supplemental oxygen ⓘ |
| contains |
Balcony
ⓘ
Cornice Traverse ⓘ Hillary Step (historical feature) ⓘ South Summit of Mount Everest ⓘ
linked to:
South Summit of Everest
summit snow slopes ⓘ |
| countryOnNorthSide | China ⓘ |
| countryOnSouthSide | Nepal ⓘ |
| difficulty | extreme ⓘ |
| elevationAtStartApprox | 7900–8000 metres above sea level ⓘ |
| elevationAtSummit | 8848.86 metres above sea level ⓘ |
| famousFor | being the most commonly used final route to the summit of Everest ⓘ |
| firstAscentBy |
Edmund Hillary
ⓘ
Tenzing Norgay ⓘ |
| firstAscentDate | 29 May 1953 ⓘ |
| firstAscentExpedition | 1953 British Mount Everest expedition ⓘ |
| hazard |
altitude sickness
ⓘ
avalanches ⓘ cerebral and pulmonary edema ⓘ falls from exposure ⓘ severe weather changes ⓘ |
| leadsTo | summit of Mount Everest ⓘ |
| liesAbove |
South Col Camp (Camp IV)
ⓘ
linked to:
Camp IV
|
| locatedIn |
Himalayas
ⓘ
Mahalangur Himal ⓘ border region of Nepal and China ⓘ |
| locatedOn | Mount Everest ⓘ |
| notableFeature |
exposure to high winds and low temperatures
ⓘ
very thin air near the summit ⓘ |
| partOf | standard South Col route on Mount Everest ⓘ |
| secondaryClimbingSeason | post-monsoon (autumn) ⓘ |
| sectionBetween |
Balcony and South Summit
ⓘ
South Col and Balcony ⓘ South Summit and main summit ⓘ |
| standardRoute |
South Col–Southeast Ridge route
ⓘ
linked to:
Southeast Ridge route
|
| startsFrom | South Col ⓘ |
| typicalUse | final summit push on south side standard route ⓘ |
| usedFor |
high-altitude climbing
ⓘ
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: Southeast Ridge of Mount Everest Description of subject: The Southeast Ridge of Mount Everest is the classic high-altitude ridgeline leading from the South Col to the summit, forming the final and most famous section of the standard climbing route on the mountain’s south side.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Southeast Ridge of Mount Everest
linked to: Southeast Ridge of Mount Everest
linked to: Southeast Ridge of Mount Everest