Zion–Mount Carmel Tunnel
E207790
The Zion–Mount Carmel Tunnel is a historic, mile-long roadway tunnel carved through sandstone cliffs in Utah’s Zion National Park, renowned for its dramatic engineering and scenic views along the park’s main east–west route.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Zion–Mount Carmel Tunnel canonical | 1 |
| Zion–Mount Carmel Tunnel east entrance | 1 |
| Zion–Mount Carmel Tunnel eastern portal | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1867618 — 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: Zion–Mount Carmel Tunnel Context triple: [Zion National Park, knownFor, Zion–Mount Carmel Tunnel]
-
A.
Al Shindagha Tunnel
Al Shindagha Tunnel is a major underwater road tunnel in Dubai that carries vehicular traffic beneath Dubai Creek, connecting the historic districts of the city.
-
B.
Malinta Tunnel
Malinta Tunnel is a historic underground complex on Corregidor Island in the Philippines that served as a bomb-proof headquarters and hospital for American and Filipino forces during World War II.
-
C.
Kerem Shalom Crossing
Kerem Shalom Crossing is a key border terminal at the junction of Israel, Egypt, and the Gaza Strip used primarily for the transfer of goods and humanitarian aid into Gaza.
-
D.
Tenda road tunnel
The Tenda road tunnel is a major Alpine tunnel connecting France and Italy beneath the Col de Tende, facilitating cross-border road traffic through the Maritime Alps.
-
E.
Downtown Tunnel
The Downtown Tunnel is a major underwater vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
- 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: Zion–Mount Carmel Tunnel Target entity description: The Zion–Mount Carmel Tunnel is a historic, mile-long roadway tunnel carved through sandstone cliffs in Utah’s Zion National Park, renowned for its dramatic engineering and scenic views along the park’s main east–west route.
-
A.
Al Shindagha Tunnel
Al Shindagha Tunnel is a major underwater road tunnel in Dubai that carries vehicular traffic beneath Dubai Creek, connecting the historic districts of the city.
-
B.
Malinta Tunnel
Malinta Tunnel is a historic underground complex on Corregidor Island in the Philippines that served as a bomb-proof headquarters and hospital for American and Filipino forces during World War II.
-
C.
Kerem Shalom Crossing
Kerem Shalom Crossing is a key border terminal at the junction of Israel, Egypt, and the Gaza Strip used primarily for the transfer of goods and humanitarian aid into Gaza.
-
D.
Tenda road tunnel
The Tenda road tunnel is a major Alpine tunnel connecting France and Italy beneath the Col de Tende, facilitating cross-border road traffic through the Maritime Alps.
-
E.
Downtown Tunnel
The Downtown Tunnel is a major underwater vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
highway tunnel
ⓘ
historic place ⓘ road tunnel ⓘ |
| builtBy |
National Park Service
ⓘ
Federal Highway Administration ⓘ
surface form:
U.S. Bureau of Public Roads
|
| carriedBy | State Route 9 (Utah) ⓘ |
| connects |
Zion Canyon
ⓘ
surface form:
Zion Canyon area
Zion National Park ⓘ
surface form:
Zion National Park east entrance
|
| constructionEndDate | 1930 ⓘ |
| constructionMethod | drilled and blasted through rock ⓘ |
| constructionStartDate | 1927 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| designedTo |
improve access to Zion National Park
ⓘ
provide direct route to Bryce Canyon and Grand Canyon regions ⓘ |
| hasFeature |
gallery windows cut into the cliff face
ⓘ
limited vertical clearance ⓘ narrow lane width ⓘ |
| hasNearbyEntrance | Zion National Park east entrance station ⓘ |
| hasNearbyFeature |
Zion–Mount Carmel Highway
ⓘ
surface form:
Zion–Mount Carmel Highway switchbacks
|
| hazard |
height restrictions for large vehicles
ⓘ
width restrictions for large vehicles ⓘ |
| length |
approximately 1.1 miles
ⓘ
approximately 1.8 kilometers ⓘ |
| locatedIn |
United States of America
ⓘ
surface form:
United States
Utah ⓘ Washington County, Utah ⓘ Zion National Park ⓘ |
| maintainedBy |
National Park Service
ⓘ
surface form:
U.S. National Park Service
|
| material | sandstone ⓘ |
| notableFor |
dramatic engineering
ⓘ
historic construction methods ⓘ scenic views ⓘ |
| openingDate | 1930 ⓘ |
| orientation | roughly east–west ⓘ |
| ownership |
United States government
ⓘ
surface form:
federal government of the United States
|
| parkRoadNumber | State Route 9 NERFINISHED ⓘ |
| partOf | Zion–Mount Carmel Highway ⓘ |
| passesThrough |
Navajo Sandstone
ⓘ
surface form:
Navajo Sandstone cliffs
|
| regulation | requires permit and escort for oversized vehicles ⓘ |
| roadwayType | two-lane road ⓘ |
| routeFunction | main east–west route through Zion National Park ⓘ |
| scenicDesignation | part of a scenic drive ⓘ |
| speedLimit | reduced speed limit ⓘ |
| state | Utah ⓘ |
| tourismImportance | major visitor attraction in Zion National Park ⓘ |
| trafficControl | escort system for oversized vehicles ⓘ |
| trafficDirection | bidirectional ⓘ |
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: Zion–Mount Carmel Tunnel Description of subject: The Zion–Mount Carmel Tunnel is a historic, mile-long roadway tunnel carved through sandstone cliffs in Utah’s Zion National Park, renowned for its dramatic engineering and scenic views along the park’s main east–west route.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Zion–Mount Carmel Tunnel eastern portal
this entity surface form:
Zion–Mount Carmel Tunnel east entrance