Snoqualmie Tunnel (John Wayne Pioneer Trail)
E886887
Snoqualmie Tunnel is a historic, nearly 2.3-mile-long former railroad tunnel in Washington State that now serves as a popular hiking and biking passage along the John Wayne Pioneer Trail through the Cascades.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Snoqualmie Tunnel (John Wayne Pioneer Trail) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10828281 — 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: Snoqualmie Tunnel (John Wayne Pioneer Trail) Context triple: [Snoqualmie Pass, hasNearbyFeature, Snoqualmie Tunnel (John Wayne Pioneer Trail)]
-
A.
Patterson Pass Tunnel
Patterson Pass Tunnel is a key water conveyance tunnel in California that carries supplies for the State Water Project’s South Bay Aqueduct through the Diablo Range.
-
B.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
C.
High Trestle Trail
High Trestle Trail is a popular Iowa recreational trail best known for its striking, artfully lit High Trestle Bridge spanning the Des Moines River.
-
D.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
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E.
Swenson Trail
Swenson Trail is a hiking path located within Stokes State Forest in New Jersey, offering access to the park’s natural scenery and 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: Snoqualmie Tunnel (John Wayne Pioneer Trail) Target entity description: Snoqualmie Tunnel is a historic, nearly 2.3-mile-long former railroad tunnel in Washington State that now serves as a popular hiking and biking passage along the John Wayne Pioneer Trail through the Cascades.
-
A.
Patterson Pass Tunnel
Patterson Pass Tunnel is a key water conveyance tunnel in California that carries supplies for the State Water Project’s South Bay Aqueduct through the Diablo Range.
-
B.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
C.
High Trestle Trail
High Trestle Trail is a popular Iowa recreational trail best known for its striking, artfully lit High Trestle Bridge spanning the Des Moines River.
-
D.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
E.
Swenson Trail
Swenson Trail is a hiking path located within Stokes State Forest in New Jersey, offering access to the park’s natural scenery and outdoor recreation.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
former railroad tunnel
ⓘ
historic structure ⓘ rail trail tunnel ⓘ |
| accessRestrictedTo | non-motorized traffic ⓘ |
| belongsToCategory |
historic railroad infrastructure in Washington State
ⓘ
rail trails in Washington State ⓘ tunnels in Washington State ⓘ |
| climateCharacteristic | cool and damp environment ⓘ |
| connects |
east side of Snoqualmie Pass
ⓘ
west side of Snoqualmie Pass ⓘ |
| feature |
cool temperature
ⓘ
gravel surface ⓘ straight alignment ⓘ unlit interior ⓘ |
| formerUse | railroad tunnel ⓘ |
| hasName |
Snoqualmie Pass Tunnel
ⓘ
linked to:
Snoqualmie Tunnel
Snoqualmie Tunnel ⓘ |
| hasStructureType | single-bore tunnel ⓘ |
| hasTrailUse |
bikepacking
ⓘ
long-distance cycling ⓘ trail running ⓘ |
| historicalSignificance | part of early 20th-century transcontinental rail route ⓘ |
| isOnRoute | former Chicago, Milwaukee, St. Paul and Pacific Railroad main line ⓘ |
| isSegmentOf | cross-state rail trail corridor ⓘ |
| length |
approximately 2.3 miles
ⓘ
approximately 3.7 kilometers ⓘ |
| locatedIn |
Cascade Range
ⓘ
United States ⓘ
linked to:
United States of America
Washington State ⓘ
linked to:
Washington
|
| managedBy | Washington State Parks and Recreation Commission ⓘ |
| near |
Interstate 90
ⓘ
Snoqualmie Pass, Washington ⓘ
linked to:
Snoqualmie Pass
|
| openedToRecreation | 20th century ⓘ |
| partOf |
John Wayne Pioneer Trail
ⓘ
Palouse to Cascades State Park Trail ⓘ |
| passesUnder | Snoqualmie Pass area ⓘ |
| requires | headlamp or flashlight for safe passage ⓘ |
| safetyRecommendation |
use of lights
ⓘ
use of warm clothing ⓘ |
| status | open seasonally to non-motorized use ⓘ |
| tourismAttractionType |
outdoor recreation site
ⓘ
rail-trail attraction ⓘ |
| traverses | Cascades ⓘ |
| usedFor |
bicycling
ⓘ
hiking ⓘ recreation ⓘ walking ⓘ |
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: Snoqualmie Tunnel (John Wayne Pioneer Trail) Description of subject: Snoqualmie Tunnel is a historic, nearly 2.3-mile-long former railroad tunnel in Washington State that now serves as a popular hiking and biking passage along the John Wayne Pioneer Trail through the Cascades.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.