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 Thomas W. Symons .
Contributors: Symons, Thomas W., (Thomas William), 1849-1920
Series: U.S. 47th Congress, 1st session, Senate : Ex. Doc -- no. 186
Published: 1882
Place of publication: Govt. Print. Off
Language: eng
Number of pages: 135
Subjects: Discoveries in geography; American; Discovery and exploration
Notes: Appended is "Map of the upper Columbia River...25 sheets and an index sheet. From surveys and examinations made in 1881, by Lieut. Thomas W. Symons."