| Dunn's Cliff (2700 feet high), Canyon of Lodore, Green river. 
      Dinosaur National Monument. Moffat County, Colorado. June 1871. USGS Earth Science Photographic Archive digital file: hjk00620
 
 Dunn's Cliff is named in honor of one of the men reported to have been killed 
    by Indians near the end of Powell's First Expedition in 1869.
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