Statistics for occurrence #1 of “Willamette” in chapter 4 of Philip Henry Sheridan, Personal Memoirs of P. H. Sheridan, General, United States Army .:
...ing 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 survey was being made in accordance with an act of C...
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