New York: Charles Scribner's Sons, 1917. First edition. Illustrated with 44 black-and-white photographs, two maps, and tissue-protected frontispiece. Includes an appendix by John Finlay entitled "A Voyage of Discovery: From the Rocky Mountain Portage in Peace River to the Soruces of Finlay's Branch and Northwestward, Summer, 1824." Green cloth boards with gilt lettering and decoration on cover and spine. Good or better with covers lightly scuffed, spine ends beginning to fray, spine shaken but binding still holding, small contemporary gift inscription on front endpaper, and a few small marginal stains.