Mount St. Helena
E54018
Mount St. Helena is a prominent volcanic peak in California’s Coast Ranges, known for its hiking trails, panoramic views, and role as a landmark at the northern end of Napa Valley.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Mount Saint Helena | 3 |
| Mount St. Helena canonical | 3 |
| Mount St. Helena area | 2 |
| Mount Saint Helena area | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T385457 — 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 St. Helena Context triple: [Calistoga, locatedNear, Mount St. Helena]
-
A.
Mount Shasta
Mount Shasta is a prominent, snow-capped stratovolcano in the Cascade Range renowned for its striking prominence, outdoor recreation, and spiritual significance.
-
B.
Mount Hood
Mount Hood is a prominent potentially active stratovolcano in northern Oregon and a major landmark and recreation destination in the Cascade Range.
-
C.
Mount Adams
Mount Adams is a massive stratovolcano in southern Washington State, known as one of the largest peaks in the Cascade Range and a popular destination for climbing and backcountry recreation.
-
D.
Mount Jefferson
Mount Jefferson is a prominent stratovolcano in the Cascade Range of Oregon, known for its rugged summit and extensive glaciation.
-
E.
Glacier Peak
Glacier Peak is a glaciated stratovolcano in Washington State, known as one of the major and more remote volcanoes of the Cascade Range.
- 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 St. Helena Target entity description: Mount St. Helena is a prominent volcanic peak in California’s Coast Ranges, known for its hiking trails, panoramic views, and role as a landmark at the northern end of Napa Valley.
-
A.
Mount Shasta
Mount Shasta is a prominent, snow-capped stratovolcano in the Cascade Range renowned for its striking prominence, outdoor recreation, and spiritual significance.
-
B.
Mount Hood
Mount Hood is a prominent potentially active stratovolcano in northern Oregon and a major landmark and recreation destination in the Cascade Range.
-
C.
Mount Adams
Mount Adams is a massive stratovolcano in southern Washington State, known as one of the largest peaks in the Cascade Range and a popular destination for climbing and backcountry recreation.
-
D.
Mount Jefferson
Mount Jefferson is a prominent stratovolcano in the Cascade Range of Oregon, known for its rugged summit and extensive glaciation.
-
E.
Glacier Peak
Glacier Peak is a glaciated stratovolcano in Washington State, known as one of the major and more remote volcanoes of the Cascade Range.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
landmark
ⓘ
mountain ⓘ volcanic peak ⓘ |
| climateZone | Mediterranean climate region ⓘ |
| county |
Lake County
ⓘ
Napa County ⓘ Solano County ⓘ Sonoma County, California ⓘ
surface form:
Sonoma County
|
| elevation |
approximately 1324 meters
ⓘ
approximately 4343 feet ⓘ |
| formsBoundaryOf | northern end of Napa Valley ⓘ |
| geologicalType | volcanic mountain ⓘ |
| hasActivity |
hiking
ⓘ
sightseeing ⓘ trail running ⓘ |
| hasFeature |
multiple summits
ⓘ
volcanic cones ⓘ |
| hasRecreation |
backpacking (limited)
ⓘ
day hiking ⓘ nature observation ⓘ |
| hasRoadAccess | California State Route 29 vicinity ⓘ |
| hasTrailhead | Robert Louis Stevenson State Park ⓘ |
| hasViewOf |
Mount Diablo (on clear days)
ⓘ
Napa Valley ⓘ Sonoma Valley ⓘ Sutter Buttes (on very clear days) ⓘ |
| isPartOf | Pacific Coast Ranges ⓘ |
| knownFor |
hiking trails
ⓘ
panoramic views ⓘ views of Napa Valley ⓘ views of the Pacific Ocean on very clear days ⓘ views of the San Francisco Bay Area on clear days ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Coastal Ranges ⓘ
surface form:
California Coast Ranges
Northern California ⓘ Robert Louis Stevenson State Park vicinity ⓘ United States of America ⓘ
surface form:
United States
|
| mountainRange |
Coastal Ranges
ⓘ
surface form:
California Coast Ranges
Mayacamas Mountains ⓘ |
| namedAfter | Saint Helena ⓘ |
| near | Napa Valley ⓘ |
| nearestCity |
Calistoga
ⓘ
surface form:
Calistoga, California
|
| partOf | Mayacamas Mountains ⓘ |
| prominence | regional landmark in North Bay ⓘ |
| region |
North Bay (San Francisco Bay Area)
ⓘ
surface form:
North Bay region of the San Francisco Bay Area
|
| straddles | Napa County–Sonoma County line ⓘ |
| topographicProminence | one of the highest peaks in the San Francisco North Bay ⓘ |
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 St. Helena Description of subject: Mount St. Helena is a prominent volcanic peak in California’s Coast Ranges, known for its hiking trails, panoramic views, and role as a landmark at the northern end of Napa Valley.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Mount Saint Helena
this entity surface form:
Mount Saint Helena
this entity surface form:
Mount Saint Helena
this entity surface form:
Mount St. Helena area
this entity surface form:
Mount St. Helena area
this entity surface form:
Mount Saint Helena area