Report of an examination of the upper Columbia river and the territory in its vicinity in September and October, 1881, to determine its navigability, and adaptability to steamboat transportation.
Subtitle: Made by direction of the commanding general of the Department of the Columbia, by Lieut. Thomas W. Symons.
Contributors: Symons, T. W. 1849-1920.
Publisher: Govt. print. off.
Published: 1882
Place of publication: Washington
Language: eng
Number of pages: 135
Subjects: Columbia River Valley; United States -- Discovery and exploration