Mount Washington Cog Railway
E462993
Mount Washington Cog Railway is a historic mountain-climbing railroad in New Hampshire that carries passengers to the summit of Mount Washington using cog-driven locomotives.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mount Washington Cog Railway canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T4669182 — 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: Mount Washington Cog Railway Context triple: [Mount Washington, hasRoute, Mount Washington Cog Railway]
-
A.
Cannon Mountain Aerial Tramway
Cannon Mountain Aerial Tramway is an aerial cable car system in New Hampshire’s White Mountains that carries visitors to the summit of Cannon Mountain for scenic views and recreation.
-
B.
Mount Washington Cog Railway upper station
Mount Washington Cog Railway upper station is the mountaintop terminus of the historic cog railway on New Hampshire’s Mount Washington, serving as an arrival point and visitor facility near the summit.
-
C.
Aerial Tram
The Aerial Tram is a cable-driven urban transit system in Portland, Oregon, that carries passengers between the South Waterfront district and Oregon Health & Science University on Marquam Hill.
-
D.
Mount Washington Auto Road
Mount Washington Auto Road is a historic, privately owned toll road in New Hampshire that climbs to the summit of Mount Washington and is famous for its steep grades, dramatic weather, and scenic mountain views.
-
E.
Mount Washington Alpine Resort
Mount Washington Alpine Resort is a popular ski and snowboard destination on Vancouver Island known for its heavy snowfall, alpine terrain, and year-round outdoor recreation.
- 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: Mount Washington Cog Railway Target entity description: Mount Washington Cog Railway is a historic mountain-climbing railroad in New Hampshire that carries passengers to the summit of Mount Washington using cog-driven locomotives.
-
A.
Cannon Mountain Aerial Tramway
Cannon Mountain Aerial Tramway is an aerial cable car system in New Hampshire’s White Mountains that carries visitors to the summit of Cannon Mountain for scenic views and recreation.
-
B.
Mount Washington Cog Railway upper station
Mount Washington Cog Railway upper station is the mountaintop terminus of the historic cog railway on New Hampshire’s Mount Washington, serving as an arrival point and visitor facility near the summit.
-
C.
Aerial Tram
The Aerial Tram is a cable-driven urban transit system in Portland, Oregon, that carries passengers between the South Waterfront district and Oregon Health & Science University on Marquam Hill.
-
D.
Mount Washington Auto Road
Mount Washington Auto Road is a historic, privately owned toll road in New Hampshire that climbs to the summit of Mount Washington and is famous for its steep grades, dramatic weather, and scenic mountain views.
-
E.
Mount Washington Alpine Resort
Mount Washington Alpine Resort is a popular ski and snowboard destination on Vancouver Island known for its heavy snowfall, alpine terrain, and year-round outdoor recreation.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
heritage railway
ⓘ
mountain railway ⓘ rack railway ⓘ tourist attraction ⓘ |
| category |
Heritage railroads in New Hampshire
ⓘ
Rack railways in the United States ⓘ Rail transport in New Hampshire ⓘ |
| connects |
Marshfield Base Station
ⓘ
summit of Mount Washington ⓘ |
| constructionStartDate | 1866 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| designer | Sylvester Marsh ⓘ |
| elevationGain | about 3,500 feet ⓘ |
| founder | Sylvester Marsh ⓘ |
| gauge | narrow gauge ⓘ |
| hasStation |
Marshfield Base Station
ⓘ
Mount Washington summit station ⓘ
linked to:
Mount Washington Cog Railway upper station
|
| heritageStatus | listed on the National Register of Historic Places ⓘ |
| historicSignificance |
first mountain-climbing cog railway in the world
ⓘ
oldest cog railway in North America ⓘ |
| lineLength | about 3 miles ⓘ |
| locatedIn |
Coos County, New Hampshire
ⓘ
New Hampshire ⓘ |
| locatedInProtectedArea | White Mountain National Forest ⓘ |
| locatedOn | Mount Washington ⓘ |
| maximumGradient | over 37 percent ⓘ |
| notableFeature |
climbs to the highest peak in the Northeastern United States
ⓘ
one of the steepest rack railways in the world ⓘ |
| offers | scenic views of the White Mountains ⓘ |
| opened | 1869 ⓘ |
| operatedBy | Mount Washington Railway Company ⓘ |
| primaryUse | tourist passenger service ⓘ |
| propulsion |
bio-diesel locomotives
ⓘ
diesel locomotives ⓘ steam locomotives ⓘ |
| rackSystemType | Marsh rack system ⓘ |
| region | New England ⓘ |
| seasonalOperation | warmer months ⓘ |
| state | New Hampshire ⓘ |
| terminusLocation |
Marshfield Base Station
ⓘ
Mount Washington ⓘ |
| touristRegion | White Mountains ⓘ |
| trackConfiguration | single track with passing sidings ⓘ |
| trackGauge | 4 ft 8 in ⓘ |
| uses |
cog-driven locomotives
ⓘ
rack-and-pinion system ⓘ |
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: Mount Washington Cog Railway Description of subject: Mount Washington Cog Railway is a historic mountain-climbing railroad in New Hampshire that carries passengers to the summit of Mount Washington using cog-driven locomotives.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.