Sulphur Works roadside fumaroles
E862983
Sulphur Works roadside fumaroles are a prominent, easily accessible hydrothermal area in Lassen Volcanic National Park where visitors can observe steaming vents, boiling mud, and strong sulfur odors along the park road.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sulphur Works roadside fumaroles canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10438510 — 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: Sulphur Works roadside fumaroles Context triple: [Lassen Volcanic National Park hydrothermal system, notableSite, Sulphur Works roadside fumaroles]
-
A.
Xiaoyoukeng fumarole area
Xiaoyoukeng fumarole area is a geothermal landscape in Yangmingshan National Park known for its active sulfur vents, hot springs, and dramatic volcanic terrain.
-
B.
Furna do Enxofre lava cave
Furna do Enxofre lava cave is a large volcanic cavern in the Azores known for its impressive underground dome, sulfurous fumaroles, and unique geothermal landscape.
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C.
Fort Rock volcanic tuff ring
Fort Rock volcanic tuff ring is a prominent horseshoe-shaped volcanic formation in central Oregon, created by explosive interactions between rising magma and an ancient lake.
-
D.
Porkchop Geyser
Porkchop Geyser is a small but notable thermal feature in Yellowstone National Park known for its erratic eruptions and a dramatic 1989 steam explosion that altered its appearance.
-
E.
Devils Garden volcanic field
Devils Garden volcanic field is an extensive area of young basaltic lava flows and volcanic features in central Oregon, known for its broad lava fields and cinder cones.
- 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: Sulphur Works roadside fumaroles Target entity description: Sulphur Works roadside fumaroles are a prominent, easily accessible hydrothermal area in Lassen Volcanic National Park where visitors can observe steaming vents, boiling mud, and strong sulfur odors along the park road.
-
A.
Xiaoyoukeng fumarole area
Xiaoyoukeng fumarole area is a geothermal landscape in Yangmingshan National Park known for its active sulfur vents, hot springs, and dramatic volcanic terrain.
-
B.
Furna do Enxofre lava cave
Furna do Enxofre lava cave is a large volcanic cavern in the Azores known for its impressive underground dome, sulfurous fumaroles, and unique geothermal landscape.
-
C.
Fort Rock volcanic tuff ring
Fort Rock volcanic tuff ring is a prominent horseshoe-shaped volcanic formation in central Oregon, created by explosive interactions between rising magma and an ancient lake.
-
D.
Porkchop Geyser
Porkchop Geyser is a small but notable thermal feature in Yellowstone National Park known for its erratic eruptions and a dramatic 1989 steam explosion that altered its appearance.
-
E.
Devils Garden volcanic field
Devils Garden volcanic field is an extensive area of young basaltic lava flows and volcanic features in central Oregon, known for its broad lava fields and cinder cones.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
fumarole field
ⓘ
hydrothermal area ⓘ |
| access |
paved park road
ⓘ
roadside pullouts ⓘ short walkways ⓘ |
| activity |
geothermal sightseeing
ⓘ
photography ⓘ |
| associatedWith | Lassen Volcanic National Park scenic drive NERFINISHED ⓘ |
| category |
fumaroles of the United States
ⓘ
geothermal tourist attraction in California ⓘ landforms of Shasta County, California ⓘ volcanic features of California ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| emits |
hydrogen sulfide
ⓘ
steam ⓘ sulfur gases ⓘ |
| geologicalSetting | active hydrothermal system ⓘ |
| hasFeature |
boiling mud pots
ⓘ
colorful mineral-stained ground ⓘ hydrothermal runoff channels ⓘ rotten-egg smell ⓘ steaming vents ⓘ strong sulfur odor ⓘ sulfur deposits ⓘ |
| heatSource | Lassen volcanic center NERFINISHED ⓘ |
| interpretation | has interpretive signs explaining hydrothermal activity ⓘ |
| knownFor |
close-up view of fumaroles
ⓘ
easy accessibility ⓘ year-round visibility when road is open ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Cascade Range ⓘ Lassen Volcanic National Park NERFINISHED ⓘ Shasta County, California NERFINISHED ⓘ |
| managedBy | National Park Service ⓘ |
| near | southwest entrance of Lassen Volcanic National Park ⓘ |
| partOf |
Lassen Volcanic National Park hydrothermal system
NERFINISHED
ⓘ
Lassen Volcanic National Park road corridor NERFINISHED ⓘ |
| relatedTo | Lassen Peak NERFINISHED ⓘ |
| safetyNote |
ground near features can be thin and unstable
ⓘ
visitors must stay on designated paths ⓘ |
| touristAttraction | yes ⓘ |
| visibility | visible from park road ⓘ |
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: Sulphur Works roadside fumaroles Description of subject: Sulphur Works roadside fumaroles are a prominent, easily accessible hydrothermal area in Lassen Volcanic National Park where visitors can observe steaming vents, boiling mud, and strong sulfur odors along the park road.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
Lassen Volcanic National Park hydrothermal system
→
notableSite
→
Sulphur Works roadside fumaroles
ⓘ