Verlag: United States Government Printing Office, Washington, 1990
Zustand: near fine. from the abstract, "The San Rafael Swell wilderness areas, including in the Muddy Creek, Crack Canyon, San Rafael Reef, Mexican Mountain and Sids Mountain Wilderness Study Areas, are in Emery County, south-central Utah. At least 4,100 current and historic mining claims have been located in or near the study areas, primarily for uranium." red cloth, 11.25" x 8.75", 56 pages, illustrated, plate 1 folded inside rear pocket.