Myriad Group, Upper Geyser Basin. Includes most of Old Faithful area’s infrastructure as it existed in the early 1970’s such as the campground, Ranger Headquarters, the amphitheater and several dozen more cabins than exist now. Dr. D.E. White & others, scale 1:2400, contour interval 5 ft. Fair to good quality B&W copy will be shipped unfolded. 18″ x 35″ 13 Oz.