Rapid at Canyon of Lodore, Green River. Head of Hell's Half Mile. Jones, Hillers, and Dellenbaugh in the Emma Dean at foot of rapid. Dinosaur National Monument. Moffat County, Colorado. June 1871. USGS Earth Science Photographic Archive digital file: hjk00612

The URL is: https://gotbooks.miracosta.edu/gonp/3Dcanyons/pages/dino21.htm Last modified: 2/14/2004