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Umatilla

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.

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