See W. W. Atwood, The Rocky Mountains (1945); P. Eberhart and P. Schmuck, The Fourteeners, Colorado's Great Mountains (1970); The Magnificent Rockies, pub. by American West (1973); D. Lavender, The Rockies (1981); H. Chronic, Time, Rocks, and the Rockies (1984); J. McPhee, Rising From the Plains (1986).
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.