^U.S. Geological Survey Geographic Names Information System: Echo Park
^"Places to Go: Echo Park". Dinosaur National Monument. National Park Service. Retrieved 1 January 2020.
^Powell, James Lawrence (2008). Dead Pool: Lake Powell, global warming, and the future of water in the West. University of California Press. pp. 106. ISBN 978-0-520-25477-0.
^Sellars, Richard West. "Chapter 5: The War and Postwar Years, 1940-1963". Preserving History in the National Parks: A History. Yale University Press. Retrieved 31 May 2011.
External references
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