Statistics for occurrence #1 of “Columbia River” in entry united-states-of-america-oregon of Harper's Encyclopedia of United States History:

... One of the Pacific coast States of the American Union, has a coast-line of 300 miles, extending from lat. 42° N., which marks the boundary between the State and California and Nevada, to the Columbia River , which separates the State from Washington on the north in lat. 46° 15′ N. Idaho lies to the east, the Snake River forming about half of the eastern boundary. It is limited in longitude b...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Columbia River (United States) 178 84 0 0 0 user votes
Columbia River (Washington, United States) 0 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.