Geology of the Owl Creek Mountains, with notes on resources of adjoining regions in the ceded portion of the Shoshone Indian Reservation, Wyoming United States 59th Congress, Senate Document no. 219, (1906)
↑Snoke, Arthur W. Nelson Horatio Darton: the quintessential reconnaissance geologist of the Rocky Mountains and Great PlainsRocky Mountain Geology; October 2003; v. 38; no. 2; p. 283-287; doi:10.2113/gsrocky.38.2.283