Umatilla (ŭmˌətĭlˈə) [key], river, c.85 mi (140 km) long, rising in NE Oreg. in the Blue Mts. It flows W past Pendleton, then NW to the Columbia River at the city of Umatilla (1990 pop. 3,046). The Umatilla project taps two of the river's tributaries for irrigation.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on Umatilla from Fact Monster:

  • - Can't read file oregon/umatilla-county/default.html
  • Pendleton - Pendleton Pendleton, city (1990 pop. 15,126), seat of Umatilla co., NE Oreg., on the Umatilla ...
  • Cayuse - Cayuse Cayuse , Native North Americans who formerly occupied parts of NE Oregon and SE Washington. ...
  • McNary Dam - McNary Dam McNary Dam, 7,265 ft (2,214 m) long and 183 ft (56 m) high, on the Columbia River ...
  • Peter Victor DEUSTER - DEUSTER, Peter Victor (1831—1904) DEUSTER, Peter Victor, a Representative from Wisconsin; ...

See more Encyclopedia articles on: U.S. Physical Geography

Play Hangman

Play Poptropica

Play Quizzes

Play Tic Tac Toe