Lyell Canyon
E135303
Lyell Canyon is a scenic glacial valley in Yosemite National Park known for its meadows, the Lyell Fork of the Tuolumne River, and access to high Sierra backcountry.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lyell Canyon canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1020191 — 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: Lyell Canyon Context triple: [Tuolumne Meadows, trailheadFor, Lyell Canyon]
-
A.
Navarin Canyon
Navarin Canyon is a large submarine canyon in the Bering Sea known for its complex seafloor topography and rich marine ecosystems.
-
B.
Ice Box Canyon
Ice Box Canyon is a popular, shaded hiking and climbing area within Nevada’s Red Rock Canyon known for its cool temperatures, steep sandstone walls, and seasonal waterfalls.
-
C.
Tenaya Canyon
Tenaya Canyon is a dramatic glacially carved gorge in Yosemite National Park, known for its steep granite walls, rugged terrain, and challenging backcountry routes between Tenaya Lake and Yosemite Valley.
-
D.
Havasu Canyon
Havasu Canyon is a remote, scenic side canyon of the Grand Canyon in Arizona, renowned for its turquoise waterfalls and as the homeland of the Havasupai people.
-
E.
Zhemchug Canyon
Zhemchug Canyon is an enormous submarine canyon in the Bering Sea, notable for being one of the largest and deepest such canyons 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: Lyell Canyon Target entity description: Lyell Canyon is a scenic glacial valley in Yosemite National Park known for its meadows, the Lyell Fork of the Tuolumne River, and access to high Sierra backcountry.
-
A.
Navarin Canyon
Navarin Canyon is a large submarine canyon in the Bering Sea known for its complex seafloor topography and rich marine ecosystems.
-
B.
Ice Box Canyon
Ice Box Canyon is a popular, shaded hiking and climbing area within Nevada’s Red Rock Canyon known for its cool temperatures, steep sandstone walls, and seasonal waterfalls.
-
C.
Tenaya Canyon
Tenaya Canyon is a dramatic glacially carved gorge in Yosemite National Park, known for its steep granite walls, rugged terrain, and challenging backcountry routes between Tenaya Lake and Yosemite Valley.
-
D.
Havasu Canyon
Havasu Canyon is a remote, scenic side canyon of the Grand Canyon in Arizona, renowned for its turquoise waterfalls and as the homeland of the Havasupai people.
-
E.
Zhemchug Canyon
Zhemchug Canyon is an enormous submarine canyon in the Bering Sea, notable for being one of the largest and deepest such canyons in the world.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
canyon
ⓘ
glacial valley ⓘ |
| accessPoint | Tuolumne Meadows ⓘ |
| bestSeasonToVisit |
early fall
ⓘ
summer ⓘ |
| climate | high-elevation continental Mediterranean ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drainage |
Lyell Fork of the Tuolumne River watershed
ⓘ
surface form:
Lyell Fork of the Tuolumne River
|
| ecosystem | Sierra Nevada alpine and subalpine ecosystem ⓘ |
| elevation |
approximately 2620 meters at canyon floor
ⓘ
approximately 8600 feet at canyon floor ⓘ |
| formedBy | Pleistocene glaciation ⓘ |
| hasFeature |
Lyell Fork meadows
ⓘ
granite domes and ridges ⓘ subalpine forest ⓘ wetlands ⓘ |
| hasShape | U-shaped valley ⓘ |
| hasWatercourse |
Lyell Fork of the Tuolumne River watershed
ⓘ
surface form:
Lyell Fork of the Tuolumne River
|
| hasWildlife |
black bear
ⓘ
mule deer ⓘ various raptor species ⓘ yellow-bellied marmot ⓘ |
| knownFor |
access to High Sierra backcountry
ⓘ
alpine meadows ⓘ glacially carved landscape ⓘ scenic views ⓘ |
| locatedIn |
Sierra Nevada
ⓘ
Tuolumne County ⓘ
surface form:
Tuolumne County, California
Yosemite National Park ⓘ |
| managedBy |
National Park Service
ⓘ
surface form:
U.S. National Park Service
|
| near |
Donohue Pass
ⓘ
Vogelsang High Sierra Camp ⓘ |
| partOf |
Tuolumne River
ⓘ
surface form:
Tuolumne River watershed
upper Tuolumne River basin ⓘ |
| popularFor |
backpacking
ⓘ
fishing ⓘ hiking ⓘ wildlife viewing ⓘ |
| recreationRegulation | wilderness permit required for overnight trips ⓘ |
| snowCover | typically snow-covered in winter and spring ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| trailTraverses |
John Muir Trail
ⓘ
Pacific Crest Trail ⓘ |
| upperEndNear |
Lyell Glacier
ⓘ
surface form:
Lyell Glacier area
Mount Lyell ⓘ |
| vegetationType |
montane meadow
ⓘ
subalpine conifer forest ⓘ |
| withinProtectedArea | Yosemite Wilderness ⓘ |
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: Lyell Canyon Description of subject: Lyell Canyon is a scenic glacial valley in Yosemite National Park known for its meadows, the Lyell Fork of the Tuolumne River, and access to high Sierra backcountry.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.