Glen Canyon
E602233
Glen Canyon is a dramatic sandstone gorge carved by the Colorado River in northern Arizona and southern Utah, known for its striking desert landscapes and the reservoir Lake Powell.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Glen Canyon canonical | 4 |
| Colorado River at Glen Canyon | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6571878 — 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: Glen Canyon Context triple: [Glen Canyon Dam, locatedIn, Glen Canyon]
-
A.
Boulder Canyon
Boulder Canyon is a rugged river gorge on the Colorado River in the American Southwest, historically significant in early plans for dam and hydroelectric development in the region.
-
B.
Lake Havasu
Lake Havasu is a large reservoir on the Colorado River along the Arizona–California border, popular for boating, fishing, and the relocated London Bridge tourist attraction.
-
C.
Flaming Gorge Reservoir
Flaming Gorge Reservoir is a large man-made lake on the Green River in Wyoming and Utah, known for its striking red-rock scenery, recreational boating and fishing, and role in regional water storage and hydropower.
-
D.
Nagykanizsa
Nagykanizsa is a city in southwestern Hungary known historically as a regional commercial and cultural center.
-
E.
Kanab
Kanab is a small city in southern Utah known as a gateway to major national parks and scenic red rock landscapes.
- 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: Glen Canyon Target entity description: Glen Canyon is a dramatic sandstone gorge carved by the Colorado River in northern Arizona and southern Utah, known for its striking desert landscapes and the reservoir Lake Powell.
-
A.
Boulder Canyon
Boulder Canyon is a rugged river gorge on the Colorado River in the American Southwest, historically significant in early plans for dam and hydroelectric development in the region.
-
B.
Lake Havasu
Lake Havasu is a large reservoir on the Colorado River along the Arizona–California border, popular for boating, fishing, and the relocated London Bridge tourist attraction.
-
C.
Flaming Gorge Reservoir
Flaming Gorge Reservoir is a large man-made lake on the Green River in Wyoming and Utah, known for its striking red-rock scenery, recreational boating and fishing, and role in regional water storage and hydropower.
-
D.
Nagykanizsa
Nagykanizsa is a city in southwestern Hungary known historically as a regional commercial and cultural center.
-
E.
Kanab
Kanab is a small city in southern Utah known as a gateway to major national parks and scenic red rock landscapes.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
canyon
ⓘ
landform ⓘ |
| adjacentTo | Navajo Nation lands NERFINISHED ⓘ |
| associatedWith | Glen Canyon Dam NERFINISHED ⓘ |
| climate | arid ⓘ |
| contains | Lake Powell NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdReservoir | Lake Powell NERFINISHED ⓘ |
| ecosystem |
desert
ⓘ
riparian corridor ⓘ |
| formedBy | erosion by the Colorado River ⓘ |
| geology | sandstone ⓘ |
| hasActivities |
kayaking
ⓘ
photography ⓘ river rafting ⓘ |
| hasFeature |
arches and natural rock formations
ⓘ
slot canyons ⓘ steep sandstone walls ⓘ |
| hasHumanModification | Glen Canyon Dam NERFINISHED ⓘ |
| hasViewpoints | overlooks of Lake Powell ⓘ |
| hydrology | Colorado River watershed NERFINISHED ⓘ |
| knownFor |
Lake Powell
NERFINISHED
ⓘ
desert landscapes ⓘ dramatic sandstone gorge ⓘ |
| locatedIn |
Arizona
NERFINISHED
ⓘ
United States of America ⓘ
surface form:
United States
Utah ⓘ |
| near | Page, Arizona NERFINISHED ⓘ |
| partOf |
American Southwest
NERFINISHED
ⓘ
Colorado Plateau NERFINISHED ⓘ Glen Canyon National Recreation Area NERFINISHED ⓘ |
| protectedBy | U.S. National Park Service NERFINISHED ⓘ |
| recreation |
boating
ⓘ
camping ⓘ fishing ⓘ hiking ⓘ |
| region |
northern Arizona
NERFINISHED
ⓘ
southern Utah NERFINISHED ⓘ |
| river | Colorado River NERFINISHED ⓘ |
| state |
Arizona
ⓘ
Utah ⓘ |
| subjectOf |
environmental conservation debates
ⓘ
recreation management policies ⓘ |
| tourism |
sightseeing
ⓘ
water-based recreation ⓘ |
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: Glen Canyon Description of subject: Glen Canyon is a dramatic sandstone gorge carved by the Colorado River in northern Arizona and southern Utah, known for its striking desert landscapes and the reservoir Lake Powell.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Colorado River at Glen Canyon