Brokeoff Volcano
E862981
Brokeoff Volcano is an eroded, extinct stratovolcano in northern California that forms a prominent peak in Lassen Volcanic National Park.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Brokeoff Volcano canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10438500 — 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: Brokeoff Volcano Context triple: [Lassen Volcanic National Park hydrothermal system, associatedWith, Brokeoff Volcano]
-
A.
Smith Volcano
Smith Volcano is an active stratovolcano in the Babuyan Islands of the northern Philippines, known for its prominent conical shape and periodic eruptions.
-
B.
Yate Volcano
Yate Volcano is a stratovolcano in southern Chile’s Los Lagos Region, known for its steep, glacier-covered cone rising dramatically near the Reloncaví Sound.
-
C.
Juriques volcano
Juriques volcano is a stratovolcano on the Bolivia–Chile border in the Andes, known for its prominent conical shape and proximity to the better-known Licancabur volcano.
-
D.
Ardoukoba volcano
Ardoukoba volcano is a small fissure volcano in Djibouti formed along the East African Rift, known for its 1978 eruption and location between Lake Assal and the Gulf of Tadjoura.
-
E.
Severgin Volcano
Severgin Volcano is a stratovolcano located in Russia’s Kuril Islands, part of the volcanic arc stretching between Japan and Kamchatka.
- 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: Brokeoff Volcano Target entity description: Brokeoff Volcano is an eroded, extinct stratovolcano in northern California that forms a prominent peak in Lassen Volcanic National Park.
-
A.
Smith Volcano
Smith Volcano is an active stratovolcano in the Babuyan Islands of the northern Philippines, known for its prominent conical shape and periodic eruptions.
-
B.
Yate Volcano
Yate Volcano is a stratovolcano in southern Chile’s Los Lagos Region, known for its steep, glacier-covered cone rising dramatically near the Reloncaví Sound.
-
C.
Juriques volcano
Juriques volcano is a stratovolcano on the Bolivia–Chile border in the Andes, known for its prominent conical shape and proximity to the better-known Licancabur volcano.
-
D.
Ardoukoba volcano
Ardoukoba volcano is a small fissure volcano in Djibouti formed along the East African Rift, known for its 1978 eruption and location between Lake Assal and the Gulf of Tadjoura.
-
E.
Severgin Volcano
Severgin Volcano is a stratovolcano located in Russia’s Kuril Islands, part of the volcanic arc stretching between Japan and Kamchatka.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
extinct volcano
ⓘ
stratovolcano ⓘ |
| alsoKnownAs |
Brokeoff Mountain
ⓘ
Mount Tehama ⓘ |
| composition |
andesite
ⓘ
dacite ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| erodedBy |
fluvial erosion
ⓘ
glacial erosion ⓘ |
| eruptionStyle | andesitic volcanism ⓘ |
| formedAs | large composite volcano ⓘ |
| formedBy | subduction of the Juan de Fuca Plate beneath the North American Plate ⓘ |
| geologicalAge | Pleistocene ⓘ |
| hasFeature |
remnant of a larger ancestral volcano
ⓘ
steep eroded slopes ⓘ |
| hasGeologicalSignificance | records early activity of the Lassen volcanic center ⓘ |
| hasHikingTrail | Brokeoff Mountain Trail ⓘ |
| hasTopographicProminence | prominent peak within Lassen Volcanic National Park ⓘ |
| hasViewOf |
Lassen Peak
ⓘ
Lassen Volcanic National Park high country ⓘ |
| isPartOf | Lassen Volcanic National Park landscape ⓘ |
| isPopularFor |
day hiking
ⓘ
scenic views of Lassen Volcanic National Park ⓘ |
| isRemnantOf | ancient Mount Tehama stratovolcano ⓘ |
| lastEruptionPeriod | Pleistocene epoch ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
Northern California ⓘ |
| locatedInCounty |
Shasta County, California
ⓘ
linked to:
Shasta County
Tehama County, California ⓘ
linked to:
Tehama County
|
| locatedInProtectedArea | Lassen Volcanic National Park ⓘ |
| locatedNear | Lassen Peak ⓘ |
| managedBy |
Lassen Volcanic National Park administration
ⓘ
linked to:
Lassen Volcanic National Park
|
| mountainType | volcanic peak ⓘ |
| nearestCity |
Redding, California
ⓘ
linked to:
Redding
|
| partOf |
Cascade Range
ⓘ
Lassen volcanic center ⓘ
linked to:
Lassen Volcanic National Park
|
| protectedBy |
U.S. National Park Service
ⓘ
linked to:
National Park Service
|
| region |
Shasta Cascade region of California
ⓘ
linked to:
Shasta Cascade region
|
| relativeLocation | southwest of Lassen Peak ⓘ |
| status | extinct ⓘ |
| volcanicArcOrBelt | Cascade Volcanic Arc ⓘ |
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: Brokeoff Volcano Description of subject: Brokeoff Volcano is an eroded, extinct stratovolcano in northern California that forms a prominent peak in Lassen Volcanic National Park.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.