The Symons report on the upper Columbia River & the great plain of the Columbia,

Report of a reconnaissance in the Ute Country [microform] made in the year 1873

Report of a reconnaissance of the Yukon river, Alaska territory : July to September, 1869 [microform]

Report of a reconnaissance of the Black Hills of Dakota, made in the summer of 1874 Microform

Report of a reconnaissance from Carroll, Montana territory, on the upper Missouri, to the Yellowstone national park, and return [microform] : made in the summer of 1875

Preliminary report concerning explorations and surveys, principally in Nevada and Arizona, prosecuted in accordance with paragraph 2, special orders no. 109, War Department, March 18, 1871, and letter of instructions of March 23, 1871, from Brigadier General A. A. Humphreys, chief of engineers.

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 [microform] : made by direction of the commanding general of the Department of the Columbia

Route from Fort Smith to Santa Fe [microform] : Letter from the Secretary of War, transmitting, in compliance with a resolution of the House of the 6th February, a report and map of Lieutenant Simpson, of the route from Fort Smith to Santa Fe

Letter from the Secretary of War, transmitting in response to Senate resolution of April 5, 1882, a letter from the Chief of Engineers ... the accompanying copy of a report from Lieut. T.W. Symons, Corps of Engineers, embracing all the information in this department respecting the navigable waters of the Upper Columbia River and its tributaries, and of the country adjacent thereto.

Lieutenant Emory reports; a reprint of Lieutenant W.H. Emory's Notes of a military reconnoissance.

Report of the exploring expedition to the Rocky Mountains in the year 1842, and to Oregon and north California in the years 1843-'44.