This document provides information about several landmarks and natural features photographed by Ansel Adams in Yellowstone National Park, Wyoming. It describes Yellowstone Falls, a 308 foot tall waterfall, Old Faithful geyser which erupts to 185 feet, and the Firehole River which is inhabited by trout. Additionally, it mentions the Fishing Cone hot spring, Castle Geyser, Yellowstone Lake, Roaring Mountain, and Mount Sheridan. The document credits sources including the U.S. National Archives, Flickr, Slideshare, Wikipedia, and the National Park Service for the information and images.