(a) Frederick Wilhelm von Egloffstein's 1858 "Rio Colorado of the West, Map No 2." (b) Detail: "Big Canon of the Colorado." Adaptation by author. Courtesy of the Library of Congress, loc.gov/resource/g4302c.np0000621.
Grand Adaptation: A Dammed River and a Confluence of Interests
One Hundred and Sixty Years of Grand Canyon Geological Mapping
This website uses cookies to ensure you get the best experience on our website. Without cookies your experience may not be seamless.