Mount Lyell
E8766
Mount Lyell is a prominent, glacier-clad peak in the Sierra Nevada of California, renowned as the tallest mountain in Yosemite National Park and a popular destination for experienced climbers.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Mount Lyell canonical | 9 |
| USGS Mount Lyell | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12290 — 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: Mount Lyell Context triple: [Yosemite National Park, highestPoint, Mount Lyell]
-
A.
Kingston Range
The Kingston Range is a remote mountain range in eastern California known for its rugged desert peaks, diverse Mojave Desert ecosystems, and relatively undisturbed wilderness character.
-
B.
Ben Nevis
Ben Nevis is the tallest mountain in the British Isles, located near Fort William in the Scottish Highlands and popular for hiking and climbing.
-
C.
Half Dome
Half Dome is a famous granite rock formation in California known for its distinctive sheer face and popular but strenuous hiking and climbing routes.
-
D.
El Capitan
El Capitan is a massive vertical granite monolith in California’s Sierra Nevada, famed worldwide as one of the most iconic and challenging big-wall rock climbing destinations.
-
E.
Ojos del Salado
Ojos del Salado is a massive stratovolcano in the Andes on the Argentina–Chile border, recognized as the highest active volcano in the world.
- 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: Mount Lyell Target entity description: Mount Lyell is a prominent, glacier-clad peak in the Sierra Nevada of California, renowned as the tallest mountain in Yosemite National Park and a popular destination for experienced climbers.
-
A.
Kingston Range
The Kingston Range is a remote mountain range in eastern California known for its rugged desert peaks, diverse Mojave Desert ecosystems, and relatively undisturbed wilderness character.
-
B.
Ben Nevis
Ben Nevis is the tallest mountain in the British Isles, located near Fort William in the Scottish Highlands and popular for hiking and climbing.
-
C.
Half Dome
Half Dome is a famous granite rock formation in California known for its distinctive sheer face and popular but strenuous hiking and climbing routes.
-
D.
El Capitan
El Capitan is a massive vertical granite monolith in California’s Sierra Nevada, famed worldwide as one of the most iconic and challenging big-wall rock climbing destinations.
-
E.
Ojos del Salado
Ojos del Salado is a massive stratovolcano in the Andes on the Argentina–Chile border, recognized as the highest active volcano in the world.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
mountain
ⓘ
peak ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drainsInto | Tuolumne River ⓘ |
| easiestRoute | scramble with glacier travel ⓘ |
| elevation |
approximately 13114 feet
ⓘ
approximately 3997 meters ⓘ |
| firstAscentBy |
John Boies Tileston
ⓘ
party of three climbers ⓘ |
| firstAscentYear | 1871 ⓘ |
| hasClimbingHazard |
crevasses on Lyell Glacier
ⓘ
loose rock near summit ⓘ |
| hasFeature |
permanent snowfields
ⓘ
rocky summit ridge ⓘ |
| hasGlacier | Lyell Glacier ⓘ |
| hasParentPeak | Mount Ritter ⓘ |
| isGlacierClad | true ⓘ |
| isHighestPointOf | Yosemite National Park ⓘ |
| isNotableAs | tallest mountain in Yosemite National Park ⓘ |
| isOnBoundaryOf |
Inyo National Forest
ⓘ
Yosemite National Park ⓘ |
| isPartOf |
Tuolumne River
ⓘ
surface form:
Lyell Fork of the Tuolumne River watershed
|
| isPopularFor |
backpacking
ⓘ
climbing ⓘ mountaineering ⓘ |
| isPopularWith | experienced climbers ⓘ |
| latitude | approximately 37.742°N ⓘ |
| liesOn |
Sierra Nevada
ⓘ
surface form:
Sierra Nevada crest
|
| locatedIn |
California, United States
ⓘ
surface form:
California
Sierra Nevada ⓘ United States of America ⓘ
surface form:
United States
Yosemite National Park ⓘ |
| longitude | approximately 119.274°W ⓘ |
| mountainRange | Sierra Nevada ⓘ |
| namedAfter | Charles Lyell ⓘ |
| prominence | approximately 1247 feet ⓘ |
| region | Tuolumne County ⓘ |
| topographicMap |
Mount Lyell
self-linksurface differs
ⓘ
surface form:
USGS Mount Lyell
|
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: Mount Lyell Description of subject: Mount Lyell is a prominent, glacier-clad peak in the Sierra Nevada of California, renowned as the tallest mountain in Yosemite National Park and a popular destination for experienced climbers.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
USGS Mount Lyell