Pronunciation: (kOO'lē), [key]
1. a dry canyon in central Washington: cut by the Columbia River in the glacial period. 52 mi. (84 km) long; over 400 ft. (120 m) deep.
2. a dam on the Columbia River at the N end of this canyon. 550 ft. (168 m) high.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.