Glendale, CA: Arthur H. Clark Company, 1954-1961. First Edition. Limited Edition of 1000 sets. Octavo, various paginations. Index. Frontispiece in all but Vol. XV (as issued); illustrations; plates; maps. Publisher's green cloth with gilt lettering; top edge stained brown, other edges untrimmed. 12pp pamphlet introducing the series and the authors laid in. All volumes are First Editions in matching dark green cloth, with gilt on spine, as issued. In Fine condition (largely unopened), now protected in mylar. Item #19407
"Containing rare documents and journals dealing with the opening of the Rocky Mountain West, this series received immediate acclaim from both the academic and general audience." Clark & Brunet 104. Indispensable resource of original narratives & letters relating to the discovery and exploration of the far west, including letters of Rufus B. Sage, Journal of the S.H. Long Expedition, Heap's Central Route to the Pacific, diaries of W.H. Jackson, account of the Mormon migration, the 1849 gold rush, overland travellers from 1839 to 1842, Fremont's fourth expedition, the Powder River campaigns of 1865, and Colorado reports of the Civil War period. (Kurutz 300; Paher 744).