This document provides information about several landmarks and natural features photographed by Ansel Adams in Yellowstone National Park, Wyoming. It describes Yellowstone Falls, a waterfall with upper and lower sections reaching 308 feet tall. It also mentions Old Faithful geyser, which erupts to heights of 185 feet, and the Firehole River, which is inhabited by trout. Additional sites discussed include 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 providing information.