Report of a Reconnaissance from Carroll, Montana Teritory, on the Upper Missouri, to the Yellowstone National Park, and Return, Made in the Summer of (Paperback)
Report of Explorations Across the Great Basin of the Territory of Utah for a Direct Wagon-Route from Camp Floyd to Genoa, in Carson Valley, in 1859, b (Paperback)
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 (Paperback)
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 (Paperback)
Report of a Reconnaissance of the Black Hills of Dakota, Made in the Summer of 1874. by William Ludlow, Captain of Engineers, Bvt. Lieut. Colonel, U.S (Hardcover)