Statistics for occurrence #1 of “Columbia River” in chapter 4 of Philip Henry Sheridan, Personal Memoirs of P. H. Sheridan, General, United States Army .:

... R. S. Williamson, who was charged with the duty of making such explorations and surveys as would determine the practicability of connecting, by railroad, the Sacramento Valley in California with the Columbia River in Oregon Territory, either through the Willamette Valley, or (if this route should prove to be impracticable) by the valley of the Des Chutes River near the foot-slopes of the Cascade chain. The s...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Columbia River (United States) 178 16 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.