Sandstone Quarry trailhead
E491746
Sandstone Quarry trailhead is a popular starting point for hiking and sightseeing in the Red Rock Canyon National Conservation Area near Las Vegas, Nevada.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sandstone Quarry Trail | 1 |
| Sandstone Quarry trailhead canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5078511 — 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: Sandstone Quarry trailhead Context triple: [Calico Tanks Trail, accessPoint, Sandstone Quarry trailhead]
-
A.
Eno Quarry Trail
Eno Quarry Trail is a short hiking path in North Carolina that loops around a former stone quarry lake, offering scenic water views and swimming spots within Eno River State Park.
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B.
Saddle Rock Trail
Saddle Rock Trail is a popular hiking path in Scotts Bluff National Monument that climbs the bluffs for scenic views of the surrounding Nebraska landscape.
-
C.
Vivian Creek Trailhead
Vivian Creek Trailhead is a popular and steep starting point for hikers ascending Southern California’s highest peak, Mount San Gorgonio, in the San Bernardino Mountains.
-
D.
Eagle Rock Trail
Eagle Rock Trail is a hiking path in Alum Rock Park known for its scenic canyon views and access to rocky overlooks.
-
E.
Gresham Butte Trail
Gresham Butte Trail is a hiking path in Gresham, Oregon, that winds through forested hillsides and natural areas on and around Gresham Butte.
- 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: Sandstone Quarry trailhead Target entity description: Sandstone Quarry trailhead is a popular starting point for hiking and sightseeing in the Red Rock Canyon National Conservation Area near Las Vegas, Nevada.
-
A.
Eno Quarry Trail
Eno Quarry Trail is a short hiking path in North Carolina that loops around a former stone quarry lake, offering scenic water views and swimming spots within Eno River State Park.
-
B.
Saddle Rock Trail
Saddle Rock Trail is a popular hiking path in Scotts Bluff National Monument that climbs the bluffs for scenic views of the surrounding Nebraska landscape.
-
C.
Vivian Creek Trailhead
Vivian Creek Trailhead is a popular and steep starting point for hikers ascending Southern California’s highest peak, Mount San Gorgonio, in the San Bernardino Mountains.
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D.
Eagle Rock Trail
Eagle Rock Trail is a hiking path in Alum Rock Park known for its scenic canyon views and access to rocky overlooks.
-
E.
Gresham Butte Trail
Gresham Butte Trail is a hiking path in Gresham, Oregon, that winds through forested hillsides and natural areas on and around Gresham Butte.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
hiking trailhead
ⓘ
tourist attraction ⓘ trailhead ⓘ |
| accessBy | paved scenic drive ⓘ |
| accesses |
Calico Tanks Trail
ⓘ
Sandstone Quarry Trail ⓘ
linked to:
Sandstone Quarry trailhead
Turtlehead Peak Trail ⓘ |
| accessRestriction | day-use area ⓘ |
| approximateDrivingTimeFrom | Las Vegas, 30–40 minutes ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| distanceFrom | Las Vegas Strip ⓘ |
| feature |
interpretive signs
ⓘ
parking area ⓘ picnic tables ⓘ rest areas ⓘ |
| hasActivity |
geology observation
ⓘ
wildlife viewing ⓘ |
| hasHazard |
high summer temperatures
ⓘ
loose rock ⓘ |
| hasNearbyAmenity | restrooms at other scenic drive stops ⓘ |
| hasNearbyFeature |
former sandstone quarry site
ⓘ
sandstone rock formations ⓘ |
| hasUse |
hiking
ⓘ
photography ⓘ rock formation viewing ⓘ sightseeing ⓘ |
| hasViewOf |
Calico Hills
ⓘ
Turtlehead Peak ⓘ |
| locatedIn |
Clark County, Nevada
ⓘ
Nevada ⓘ Red Rock Canyon National Conservation Area ⓘ United States ⓘ
linked to:
United States of America
|
| locatedNear | Las Vegas, Nevada ⓘ |
| managesBy |
Bureau of Land Management
ⓘ
linked to:
U.S. Bureau of Land Management
|
| partOf |
Red Rock Canyon National Conservation Area Scenic Drive
ⓘ
linked to:
Red Rock Canyon Scenic Drive
|
| partOfProtectedArea | Red Rock Canyon National Conservation Area ⓘ |
| popularFor |
desert scenery
ⓘ
family hikes ⓘ short hikes ⓘ |
| region | Mojave Desert ⓘ |
| requires | Red Rock Canyon entry fee ⓘ |
| surfaceType | natural surface ⓘ |
| terrainType | desert ⓘ |
| trailDifficultyRange | easy to strenuous ⓘ |
| typicalClimate | arid ⓘ |
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: Sandstone Quarry trailhead Description of subject: Sandstone Quarry trailhead is a popular starting point for hiking and sightseeing in the Red Rock Canyon National Conservation Area near Las Vegas, Nevada.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sandstone Quarry trailhead