Columbia River Basalt Group

E1282812 UNEXPLORED

The Columbia River Basalt Group is a vast Miocene-age large igneous province in the Pacific Northwest composed of extensive flood basalt lava flows that blanket parts of Washington, Oregon, and Idaho.

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All labels observed (6)

Label	Occurrences
Columbia River Basalt Group canonical	8
Columbia River Basalt Group formations	1
Columbia River Basalt Group landscape	1
Columbia River Basalt Group region	1
Columbia River basalt	1
Pacific Northwest volcanic province	1

How this entity was disambiguated

This entity first appeared as the object of triple T17683099 — 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: Columbia River Basalt Group
Context triple: [Dry Falls, geologicalSetting, Columbia River Basalt Group]

A. Absaroka Volcanic Supergroup
The Absaroka Volcanic Supergroup is a large sequence of Eocene-age volcanic rocks in the Rocky Mountains of Wyoming and Montana, representing one of the most extensive ancient volcanic fields in the region.
B. Cascade Range volcanic province
The Cascade Range volcanic province is a major volcanic region in western North America characterized by a chain of active and dormant stratovolcanoes and extensive volcanic deposits formed by the subduction of the Juan de Fuca Plate beneath the North American Plate.
C. Snake River Plain volcanic fields
The Snake River Plain volcanic fields are a series of extensive basaltic lava flows and volcanic features in Idaho that record the westward track of the Yellowstone hotspot across the Intermountain West.
D. Idaho batholith
The Idaho batholith is a massive granitic intrusive rock complex in central Idaho that formed during Late Cretaceous magmatism and is one of the largest batholiths in North America.
E. High Lava Plains
The High Lava Plains is a volcanic plateau in southeastern Oregon characterized by extensive basaltic lava flows, scattered cinder cones, and high-elevation desert landscapes.
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: Columbia River Basalt Group
Target entity description: The Columbia River Basalt Group is a vast Miocene-age large igneous province in the Pacific Northwest composed of extensive flood basalt lava flows that blanket parts of Washington, Oregon, and Idaho.

A. Absaroka Volcanic Supergroup
The Absaroka Volcanic Supergroup is a large sequence of Eocene-age volcanic rocks in the Rocky Mountains of Wyoming and Montana, representing one of the most extensive ancient volcanic fields in the region.
B. Cascade Range volcanic province
The Cascade Range volcanic province is a major volcanic region in western North America characterized by a chain of active and dormant stratovolcanoes and extensive volcanic deposits formed by the subduction of the Juan de Fuca Plate beneath the North American Plate.
C. Snake River Plain volcanic fields
The Snake River Plain volcanic fields are a series of extensive basaltic lava flows and volcanic features in Idaho that record the westward track of the Yellowstone hotspot across the Intermountain West.
D. Idaho batholith
The Idaho batholith is a massive granitic intrusive rock complex in central Idaho that formed during Late Cretaceous magmatism and is one of the largest batholiths in North America.
E. High Lava Plains
The High Lava Plains is a volcanic plateau in southeastern Oregon characterized by extensive basaltic lava flows, scattered cinder cones, and high-elevation desert landscapes.
F. None of above. chosen