The Yampa coal field, Routt county, Colorado - Fenneman, Nevin Melancthon, 1865-1945.; Gale, Hoyt S. (Hoyt Stoddard), 1876-; Campbell, Marius R. (Marius Robinson), 1858-1940. (Washington, Govt. Print. Off., 1906)
Subject series: A, Economic geology, 84; B, Descriptive geology, 104.
Issued also as House doc. no. 936, 59th Cong., 1st sess.
Literature : p. 11.
Includes index.
Keywords: Coal -- Colorado