Denver: U.S. Department of the Interior, Bureau of Land Management, Circa 1975. Paperback. 320pp. Quarto [28 cm] Light gray and black printed wraps. Very good. The spine and covers are subtly darkened, and the rear cover is lightly soiled. There is a previous owner's name in pencil on the front cover, and there is a 1" long jammed closed tear in the bottom edge of the rear cover. The title has been written in pen on the spine. Spine ends lightly chipped. The text block is just beginning to crack at the contents page. With two biome maps in the rear pocket. Item #35752
Technical Note. U.S. Department of the Interior T-N-269.