^Daily Alta California, Volume 18, Number 5922, 28 May 1866, p.1 col. 5-6; OUR ARIZONA CORRESPONDENCE, Up The Colorado, (from the Correspondent of the Alta California), El Dorado Canyon, April 30th, 1866, Alling [Frank S. Alling]
^Riggs, John L. (July 27, 1912). "The Story of Eldorado Canyon". Mohave County Miner. Mineral Park, Arizona. p. 5. Retrieved January 23, 2020.