Promontory Summit, Utah Territory

E38257

historic site railroad landmark

Promontory Summit, in the former Utah Territory, is the historic site where the First Transcontinental Railroad was completed in 1869 with the driving of the Golden Spike.

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All labels observed (4)

Label	Occurrences
Promontory Summit	13
Promontory Summit, Utah Territory canonical	12
Promontory, Utah	4
Promontory Summit, Utah	2

How this entity was disambiguated

This entity first appeared as the object of triple T298317 — 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 Summit, Utah Territory
Context triple: [Central Pacific Railroad historic route, terminus, Promontory Summit, Utah Territory]

A. Great Basin National Park
Great Basin National Park is a remote U.S. national park in eastern Nevada known for its ancient bristlecone pines, Lehman Caves, and the towering Wheeler Peak.
B. Grand Staircase
The Grand Staircase is an ornate central staircase within the Massachusetts State House, known for its impressive architecture and ceremonial significance.
C. Zion National Park
Zion National Park is a renowned national park in southwestern Utah known for its towering sandstone cliffs, narrow slot canyons, and scenic hiking trails like Angels Landing and The Narrows.
D. Comstock Lode area
The Comstock Lode area is a historically significant mining district in Nevada famed for its rich silver ore deposits that spurred a major 19th-century mining boom and helped drive U.S. economic growth.
E. Mount Jefferson
Mount Jefferson is a prominent stratovolcano in the Cascade Range of Oregon, known for its rugged summit and extensive glaciation.
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 Summit, Utah Territory
Target entity description: Promontory Summit, in the former Utah Territory, is the historic site where the First Transcontinental Railroad was completed in 1869 with the driving of the Golden Spike.

A. Great Basin National Park
Great Basin National Park is a remote U.S. national park in eastern Nevada known for its ancient bristlecone pines, Lehman Caves, and the towering Wheeler Peak.
B. Grand Staircase
The Grand Staircase is an ornate central staircase within the Massachusetts State House, known for its impressive architecture and ceremonial significance.
C. Zion National Park
Zion National Park is a renowned national park in southwestern Utah known for its towering sandstone cliffs, narrow slot canyons, and scenic hiking trails like Angels Landing and The Narrows.
D. Comstock Lode area
The Comstock Lode area is a historically significant mining district in Nevada famed for its rich silver ore deposits that spurred a major 19th-century mining boom and helped drive U.S. economic growth.
E. Mount Jefferson
Mount Jefferson is a prominent stratovolcano in the Cascade Range of Oregon, known for its rugged summit and extensive glaciation.
F. None of above. chosen

Statements (47)

Predicate	Object
instanceOf	historic site ⓘ railroad landmark ⓘ
associatedWithEvent	joining of the Union Pacific and Central Pacific rail lines ⓘ
associatedWithLocomotive	Central Pacific Jupiter ⓘ linked to: Central Pacific Railroad Union Pacific No. 119 ⓘ
associatedWithOrganization	Central Pacific Railroad Company ⓘ linked to: Central Pacific Railroad Union Pacific Railroad Company ⓘ linked to: Union Pacific Railroad
associatedWithPerson	Grenville M. Dodge ⓘ Leland Stanford ⓘ Samuel S. Montague ⓘ Thomas C. Durant ⓘ linked to: Thomas Durant
associatedWithTechnology	steam locomotives ⓘ
category	First Transcontinental Railroad in the United States ⓘ linked to: First Transcontinental Railroad Historic sites in Utah ⓘ Rail transportation in Utah ⓘ
commemoratedBy	Golden Spike National Historical Park ⓘ
coordinateSystem	geographic coordinates ⓘ
country	United States ⓘ linked to: United States of America
dateOfSignificantEvent	1869-05-10 ⓘ
elevationApprox	1494 meters ⓘ 4900 feet ⓘ
eventTypeAtLocation	golden spike ceremony ⓘ
formerlyDesignatedAs	Golden Spike National Historic Site ⓘ linked to: Golden Spike National Historical Park
hasCommemoration	annual reenactment of the Golden Spike ceremony ⓘ
hasInterpretiveCenter	visitor center at Golden Spike National Historical Park ⓘ
hasMonument	monument marking the Golden Spike site ⓘ
hasReplicaFeature	replica steam locomotives ⓘ
hasSymbolicObject	Golden Spike ⓘ linked to: Golden Spike ceremony
heritageDesignation	National Historic Landmark ⓘ National Register of Historic Places listing ⓘ linked to: National Register of Historic Places
historicalEra	19th century ⓘ American Old West ⓘ linked to: Old West
impact	accelerated settlement of the American West ⓘ facilitated transcontinental travel and commerce ⓘ linked the eastern and western United States by rail ⓘ
locatedIn	Box Elder County, Utah ⓘ Utah Territory ⓘ linked to: Utah
locatedInPresentDay	Utah ⓘ
locatedNear	Great Salt Lake ⓘ
locatedOnLandform	Promontory Mountains ⓘ
NRHPType	historic site ⓘ
partOf	First Transcontinental Railroad ⓘ
railLineStatusAfterward	later bypassed by a shorter Lucin Cutoff route ⓘ
railroadMet	Central Pacific Railroad ⓘ Union Pacific Railroad ⓘ
significantEvent	completion of the First Transcontinental Railroad ⓘ driving of the Golden Spike ⓘ linked to: First Transcontinental Railroad

How these facts were elicited

Referenced by (31)

Full triples — surface form annotated when it differs from this entity's canonical label.

Central Pacific Railroad historic route → terminus → Promontory Summit, Utah Territory ⓘ

Central Pacific Railroad historic route → endPoint → Promontory Summit, Utah Territory ⓘ

Thiokol → facilityLocation → Promontory, Utah ⓘ