78 pp. Edited by Wiliam McPherson. 3 maps. 6x4½, original tan buckram with gray boards, paper spine label, housed in a custom morocco-backed cloth drop-back box, spine lettered in gilt. Printed by Arthur MacDonald Ellis for the Zamorano Club. First Edition.

With the bookplate of J.R. Brehm on front pastedown. "In 1849 Couts conducted the Whipple Expedition to the Colorado River, and it was on this expedition that he wrote the diary here printed for the first time" - from the preface. See Howes C811.