New York and Washington, D.C. The Viking Press and National Parks Foundation, 1981. First edition and first printing. Hardcover. Foreword by John L. Bryant Jr. Features text by Robert Cahn and Robert Glenn Ketchum. Includes numerous black and white images by Ansel Adams, Harry Callahan, Lee Friedlander, Carleton Watkins, Minor White and many others. A very near fine copy in green cloth boards in a very good slipcase with some minor wear. No dust jacket as issued.