Lees Ferry
E599653
Lees Ferry is a historic river crossing and popular launch point for Colorado River rafting trips located at the upstream end of the Grand Canyon in northern Arizona.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lees Ferry canonical | 3 |
| Colorado River crossing | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6591863 — 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: Lees Ferry Context triple: [Glen Canyon National Recreation Area, hasPart, Lees Ferry]
-
A.
Nagykanizsa
Nagykanizsa is a city in southwestern Hungary known historically as a regional commercial and cultural center.
-
B.
Royal Gorge
Royal Gorge is a steep, narrow canyon in Colorado famed for its dramatic cliffs, historic railroad route, and the Royal Gorge Bridge spanning the Arkansas River.
-
C.
Κανὰ
Κανὰ is the Greek name for Cana, the Galilean village traditionally associated with Jesus’ first miracle of turning water into wine.
-
D.
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.
-
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: Lees Ferry Target entity description: Lees Ferry is a historic river crossing and popular launch point for Colorado River rafting trips located at the upstream end of the Grand Canyon in northern Arizona.
-
A.
Nagykanizsa
Nagykanizsa is a city in southwestern Hungary known historically as a regional commercial and cultural center.
-
B.
Royal Gorge
Royal Gorge is a steep, narrow canyon in Colorado famed for its dramatic cliffs, historic railroad route, and the Royal Gorge Bridge spanning the Arkansas River.
-
C.
Κανὰ
Κανὰ is the Greek name for Cana, the Galilean village traditionally associated with Jesus’ first miracle of turning water into wine.
-
D.
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.
-
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 (47)
| Predicate | Object |
|---|---|
| instanceOf |
Colorado River access point
ⓘ
historic site ⓘ river crossing ⓘ |
| accessedVia |
Lees Ferry Road
ⓘ
U.S. Route 89A ⓘ |
| confluenceNearby |
Paria River and Colorado River
ⓘ
linked to:
Paria River
|
| country |
United States
ⓘ
linked to:
United States of America
|
| county |
Coconino County
ⓘ
linked to:
Coconino County, Arizona
|
| elevation |
approximately 3,200 feet
ⓘ
approximately 975 meters ⓘ |
| geologicalSetting | transition between Glen Canyon and Marble Canyon ⓘ |
| hasFeature |
boat ramp
ⓘ
campground nearby ⓘ historic structures ⓘ parking area ⓘ river access beach ⓘ |
| hasRecreationActivity |
angling
ⓘ
hiking nearby ⓘ kayaking ⓘ rafting ⓘ |
| historicalRole |
major Colorado River crossing in the 19th century
ⓘ
transportation link between Utah and Arizona ⓘ |
| locatedAt | upstream end of the Grand Canyon ⓘ |
| locatedIn |
Arizona
ⓘ
Coconino County, Arizona ⓘ United States ⓘ
linked to:
United States of America
|
| locatedNear |
Grand Canyon National Park
ⓘ
Marble Canyon, Arizona ⓘ
linked to:
Marble Canyon
Vermilion Cliffs ⓘ |
| locatedOn | Colorado River ⓘ |
| managedBy |
U.S. National Park Service
ⓘ
linked to:
National Park Service
|
| namedAfter | John D. Lee ⓘ |
| nearbyWaterBody | Paria River ⓘ |
| partOf |
Glen Canyon
ⓘ
Glen Canyon National Recreation Area ⓘ |
| region | northern Arizona ⓘ |
| startPointOf |
many private Colorado River trips
ⓘ
most Grand Canyon commercial river trips ⓘ |
| state | Arizona ⓘ |
| tourismType |
heritage tourism
ⓘ
outdoor recreation ⓘ |
| usedFor |
Colorado River rafting launches
ⓘ
Grand Canyon river trips ⓘ boating access ⓘ fishing access ⓘ river recreation ⓘ |
| waterwayMileMarker | Colorado River mile 0 for Grand Canyon boating ⓘ |
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: Lees Ferry Description of subject: Lees Ferry is a historic river crossing and popular launch point for Colorado River rafting trips located at the upstream end of the Grand Canyon in northern Arizona.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Lees Ferry