1987 - Recurrent Quaternary normal faulting at Major Creek, Colorado McCalpin, James, 1987, Recurrent Quaternary normal faulting at Major Creek, Colorado: an example of youthful tectonism on the eastern boundary of the Rio Grande Rift Zone: Geological Society of America, Centennial Field Guide, Rocky Mountain Section, p. 353 356.
McCalpin, James, 1987, Recurrent Quaternary normal faulting at Major Creek, Colorado: an example of youthful tectonism on the eastern boundary of the Rio Grande Rift Zone: Geological Society of America, Centennial Field Guide, Rocky Mountain Section, p. 353 356.