Promontory Mountains
E219917
United States National Historical Park
alternative name
cape
ceremonial railroad spike
mountain pass
mountain peak
mountain range
The Promontory Mountains are a mountain range in northern Utah best known as the site where the First Transcontinental Railroad was completed at Promontory Summit in 1869.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Promontory Mountains canonical | 13 |
| Promontory Range | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1742213 — 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: Promontory Mountains Context triple: [Promontory Summit, Utah Territory, locatedOnLandform, Promontory Mountains]
-
A.
Shoshone Range
The Shoshone Range is a mountain range in central Nevada known for its rugged terrain and mining history.
-
B.
Elk Mountains
The Elk Mountains are a rugged subrange of the Rocky Mountains in western Colorado, known for their dramatic peaks, extensive wilderness, and popular hiking and skiing areas.
-
C.
Sawtooth Range
The Sawtooth Range is a rugged, jagged-peaked mountain range in central Idaho known for its dramatic alpine scenery, numerous glacial lakes, and extensive hiking and climbing opportunities.
-
D.
Uinta Mountains
The Uinta Mountains are an east–west trending mountain range in northeastern Utah known for their high alpine peaks, extensive wilderness areas, and the highest point in Utah, Kings Peak.
-
E.
Delamar Mountains
The Delamar Mountains are a remote, arid mountain range in southeastern Nevada known for their rugged terrain and historic mining activity.
- 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: Promontory Mountains Target entity description: The Promontory Mountains are a mountain range in northern Utah best known as the site where the First Transcontinental Railroad was completed at Promontory Summit in 1869.
-
A.
Shoshone Range
The Shoshone Range is a mountain range in central Nevada known for its rugged terrain and mining history.
-
B.
Elk Mountains
The Elk Mountains are a rugged subrange of the Rocky Mountains in western Colorado, known for their dramatic peaks, extensive wilderness, and popular hiking and skiing areas.
-
C.
Sawtooth Range
The Sawtooth Range is a rugged, jagged-peaked mountain range in central Idaho known for its dramatic alpine scenery, numerous glacial lakes, and extensive hiking and climbing opportunities.
-
D.
Uinta Mountains
The Uinta Mountains are an east–west trending mountain range in northeastern Utah known for their high alpine peaks, extensive wilderness areas, and the highest point in Utah, Kings Peak.
-
E.
Delamar Mountains
The Delamar Mountains are a remote, arid mountain range in southeastern Nevada known for their rugged terrain and historic mining activity.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
United States National Historical Park
ⓘ
alternative name ⓘ cape ⓘ ceremonial railroad spike ⓘ mountain pass ⓘ mountain peak ⓘ mountain range ⓘ |
| adjacentTo | Promontory Point ⓘ |
| climate | semi-arid ⓘ |
| contains |
Promontory Summit
ⓘ
linked to:
Promontory Summit, Utah Territory
|
| country |
United States of America
ⓘ
United States of America ⓘ |
| dateOfEvent | 10 May 1869 ⓘ |
| elevation | about 2,000 meters above sea level (highest areas) ⓘ |
| event | driving of the Golden Spike ⓘ |
| forms | Promontory Peninsula ⓘ |
| geologicalType | fault-block mountains ⓘ |
| hasAccessVia | local ranch roads ⓘ |
| hasName |
Promontory Range
ⓘ
linked to:
Promontory Mountains
|
| hasProtectedArea |
Golden Spike National Historical Park (nearby at Promontory Summit)
ⓘ
linked to:
Golden Spike National Historical Park
|
| highestPoint | Messix Peak ⓘ |
| historicalEvent | joining of Union Pacific Railroad and Central Pacific Railroad ⓘ |
| knownFor |
ceremonial completion of the First Transcontinental Railroad in 1869
ⓘ
site of completion of the First Transcontinental Railroad ⓘ |
| locatedIn |
Box Elder County, Utah
ⓘ
Box Elder County, Utah ⓘ Box Elder County, Utah ⓘ Great Basin ⓘ Intermountain West ⓘ Promontory Mountains ⓘ Promontory Mountains ⓘ Promontory Peninsula ⓘ Promontory Summit ⓘ
linked to:
Promontory Summit, Utah Territory
northern Utah ⓘ |
| marks | joining of the Union Pacific Railroad and Central Pacific Railroad ⓘ |
| nameLanguage | English ⓘ |
| near | Great Salt Lake ⓘ |
| orientation | generally north–south ⓘ |
| partOf |
Rocky Mountains (physiographic region, broadly construed)
ⓘ
linked to:
Rocky Mountains
|
| refersTo | Promontory Mountains ⓘ |
| region | Northern Utah ⓘ |
| separates |
Great Salt Lake
ⓘ
Thioland (Promontory) arm of Great Salt Lake from main body of lake ⓘ |
| state | Utah ⓘ |
| usedFor |
livestock grazing
ⓘ
outdoor recreation ⓘ |
| vegetation |
grassland
ⓘ
sagebrush steppe ⓘ |
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: Promontory Mountains Description of subject: The Promontory Mountains are a mountain range in northern Utah best known as the site where the First Transcontinental Railroad was completed at Promontory Summit in 1869.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Promontory Mountains
subject linked to:
Promontory Mountains
linked to: Promontory Mountains
subject linked to:
Promontory Mountains