@book{51783,
	author = {United States. and Symons, T. W.},
	title = {Report of an examination of the upper Columbia river and the territory in its vicinity in September and October, 1881,},
	publisher = {Govt. Print. Off.,},
	year = {1882.},
	series = {U. S. 47th Cong., 1st sess. Senate. Ex. doc. 186},
	address = {Washington,},
	note = {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 ... and Alfred Downing ... Drawn by Alfred Downing."}
}