Columbia River drainage basin
The Columbia River drainage basin is the drainage basin of the Columbia River in the Pacific Northwest region of North America. It covers . In common usage, the term often refers to a smaller area, generally the portion of the drainage basin that lies within eastern Washington.

Usage of the term "Columbia Basin" in British Columbia generally refers only to the immediate basins of the Columbia and Kootenay Rivers and excludes that of the Okanagan, Kettle and Similkameen Rivers.
Q166620
drainage basin
Concept
Q2251
Columbia River
LOC
Q12603
Pacific Northwest
LOC
Q49
North America
LOC
Q3391942
a smaller area
UNK
Q3046581
eastern Washington
LOC
Q1974
British Columbia
LOC
Q2262
Kootenay River
LOC
Q271058
Okanagan
LOC
Q270484
Kettle
LOC
Q304833
Similkameen River
LOC
Q2887539
Columbia River drainage basin
LOC
instance of
located in or next to body of water
continent
located in the administrative territorial entity
continent
drainage basin
located on terrain feature
located in the administrative territorial entity
located in the administrative territorial entity
located in the administrative territorial entity
located in the administrative territorial entity