| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
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| Umatilla |
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( m´´ t l´ ) (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 rivers tributaries for irrigation. |
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| | | The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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