4 books
Report of the Exploring Expedition from Santa Fe, New Mexico, to the Junction of the Grand and Green Rivers of the Great Colorado of the West, in 1859
Report of a Reconnaissance from Carroll, Montana Teritory, on the Upper Missouri, to the Yellowstone National Park, and Return, Made in the Summer of
Report Upon the Reconnaissance of Northwestern Wyoming,
Report of a Reconnaissance of the Black Hills of Dakota, Made in the Summer of 1874. Being Appendix Pp of the Annual Report of the Chief of Engineers