Hole-in-the-Ground maar
E628082
Hole-in-the-Ground maar is a large, well-preserved volcanic explosion crater in central Oregon known for its steep-walled, circular depression formed by a violent phreatomagmatic eruption.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hole-in-the-Ground maar canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6912915 — 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: Hole-in-the-Ground maar Context triple: [Fort Rock–Christmas Lake Valley, contains, Hole-in-the-Ground maar]
-
A.
The Hole
The Hole is a 2001 British psychological horror-thriller film about a group of private school students who become trapped in an underground bunker.
-
B.
Smiggin Holes
Smiggin Holes is a small alpine village and ski area in New South Wales, Australia, that forms part of the Perisher ski resort in the Snowy Mountains.
-
C.
Down in a Hole
"Down in a Hole" is a melancholic grunge ballad by Alice in Chains, known for its dark, introspective lyrics and haunting vocal harmonies.
-
D.
Road Hole
Road Hole is the famously challenging 17th hole at the Old Course at St Andrews, renowned for its blind tee shot over buildings and treacherous road and bunker guarding the green.
-
E.
Thunder Hole
Thunder Hole is a coastal inlet in Acadia National Park known for its dramatic crashing waves and thunderous booming sounds created as seawater surges into a narrow rock cavern.
- 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: Hole-in-the-Ground maar Target entity description: Hole-in-the-Ground maar is a large, well-preserved volcanic explosion crater in central Oregon known for its steep-walled, circular depression formed by a violent phreatomagmatic eruption.
-
A.
The Hole
The Hole is a 2001 British psychological horror-thriller film about a group of private school students who become trapped in an underground bunker.
-
B.
Smiggin Holes
Smiggin Holes is a small alpine village and ski area in New South Wales, Australia, that forms part of the Perisher ski resort in the Snowy Mountains.
-
C.
Down in a Hole
"Down in a Hole" is a melancholic grunge ballad by Alice in Chains, known for its dark, introspective lyrics and haunting vocal harmonies.
-
D.
Road Hole
Road Hole is the famously challenging 17th hole at the Old Course at St Andrews, renowned for its blind tee shot over buildings and treacherous road and bunker guarding the green.
-
E.
Thunder Hole
Thunder Hole is a coastal inlet in Acadia National Park known for its dramatic crashing waves and thunderous booming sounds created as seawater surges into a narrow rock cavern.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
maar
ⓘ
phreatomagmatic explosion crater ⓘ volcanic crater ⓘ |
| access | gravel road from U.S. Route 31 ⓘ |
| approximateAge |
late Pleistocene
ⓘ
less than 100,000 years ⓘ |
| contains |
flat-floored crater bottom
ⓘ
seasonal ponds ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Deschutes County NERFINISHED ⓘ |
| depth | approximately 100 meters ⓘ |
| diameter | approximately 1.0 kilometer ⓘ |
| elevation | approximately 1460 meters above sea level ⓘ |
| eruptionStyle | explosive ⓘ |
| eruptionType | phreatomagmatic ⓘ |
| featureOfInterestFor |
geologists
ⓘ
hikers ⓘ volcanologists ⓘ |
| formationProcess | phreatomagmatic eruption ⓘ |
| formedByInteractionOf |
groundwater
ⓘ
rising magma ⓘ |
| geologicalAge | Pleistocene ⓘ |
| geologicProvince | Basin and Range Province NERFINISHED ⓘ |
| geologicSetting | intra-plate basaltic volcanism ⓘ |
| locatedIn |
Deschutes County, Oregon
NERFINISHED
ⓘ
Oregon ⓘ United States of America ⓘ
surface form:
United States
central Oregon NERFINISHED ⓘ |
| managedBy | U.S. Bureau of Land Management NERFINISHED ⓘ |
| near |
Fort Rock, Oregon
NERFINISHED
ⓘ
U.S. Route 31 NERFINISHED ⓘ |
| notableFor |
distinct circular outline
ⓘ
excellent exposure of phreatomagmatic deposits ⓘ large size for a maar ⓘ steep crater walls ⓘ |
| partOf |
Fort Rock–Christmas Lake Valley basin
NERFINISHED
ⓘ
Fort Rock–Christmas Lake Valley volcanic field NERFINISHED ⓘ |
| preservationState | well-preserved ⓘ |
| region | High Lava Plains of Oregon NERFINISHED ⓘ |
| rockType | basaltic ⓘ |
| shape | circular ⓘ |
| state | Oregon ⓘ |
| surfaceFeature | rim of ejecta and tuff rings ⓘ |
| usedFor |
geologic field studies
ⓘ
recreation ⓘ |
| vegetation |
ponderosa pine
ⓘ
sagebrush ⓘ |
| volcanicField | Fort Rock–Christmas Lake Valley volcanic field NERFINISHED ⓘ |
| wallCharacteristic | steep-walled ⓘ |
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: Hole-in-the-Ground maar Description of subject: Hole-in-the-Ground maar is a large, well-preserved volcanic explosion crater in central Oregon known for its steep-walled, circular depression formed by a violent phreatomagmatic eruption.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.