Chittenden, Hiram Martin: _A History of the American Fur Trade of the Far West_, Academic Reprints, Stanford, California 1954. Mattes, Merrill J.: “Jackson Hole, Crossroads of the Western Fur Trade, 1807-1840, _The Pacific Northwest Quarterly_, Volume 37, April, 1946 and Volume 39, January, 1948. Morgan, Dale: _Jedediah Smith and the Opening of the West_, The Bobbs-Merrill Company, Incorporated, New York 1953. Sullivan, Maurice S.: _Jedediah Smith, Trader and Trailbreaker_, Press of the Pioneers, Incorporated, New York 1936. Sunder, John E.: _Bill Sublette, Mountain Man_, University of Oklahoma Press, Norman, Oklahoma 1959. Vestal, Stanley: _Jim Bridger, Mountain Man_, William Morrow and Company, New York 1946. [Illustration: Riverboat] THE DOANE EXPEDITION OF 1876-77 FORT ELLIS, MONTANA TERRITORY TO FORT HALL, IDAHO By Merlin K. Potts, _former Chief Park Naturalist_ Telegram St. Paul, Minnesota October 4, 1876 To the Commanding Officer Fort Ellis, Montana Territory Under authority received from the Lieut-General, 1st. Lieut. G. C. Doane, 2d Cavalry is ordered to make exploration of Snake River from Yellowstone Lake to Columbia River. He will be furnished a mounted detail of one noncommissioned officer and five men of the 2d Cavalry. The pack animals, 60 days rations for party, and the necessary camp equipage. You will cause also a small boat to be built by the quartermaster for Lieut. Doane’s use, under his directions. Lieut. Doane will send back his Detachment from mouth of Snake River to Fort Ellis, and will himself return to his post via San Francisco, California, remaining at the latter place long enough to make his report. By command of Gen. Terry (Signed) Edw. Smith Capt. of A. D. C. Headquarters, Fort Ellis, Montana Territory October 7, 1876 Special Orders No. 142 Extract II. 1st. Lieut. G. C. Doane, 2d Cavalry is hereby relieved from duty at his post and will comply with telegraphic instructions from Headquarters, Department of Dakota, Saint Paul, Minn. date Oct. 4th, 1876. III. The following named enlisted men are hereby detailed for detached service mounted, and will report to 1st. Lieut. G. C. Doane, 2d Cavalry for duty.