Rocky Mountain National Park is northwest of Denver and about 3 kilometers (2 miles) west of the community of Estes Park, Colorado. The park is one of America’s most accessible mountainous areas. Trail Ridge, which crosses the Continental Divide, offers breathtaking views. Elk, mule deer, bear, cougar, and bighorn sheep roam mountain crags, meadows, and valleys. Mailing address: Estes Park, CO 80517.
Theodore Roosevelt National Park is on Interstate 94 at Medora, North Dakota. A separate unit is 90 kilometers (56 miles) north on U.S. 85. In these magnificantly colored badlands along the Little Missouri River Roosevelt had an open-range ranch and developed his practical conservation philosophy. Both units have campgrounds. Mailing address: P.O. Box 7, Medora, ND 58645.
Bartlett, Richard A., _Great Surveys of the American West_, University of Oklahoma Press, 1962.
Camp, Charles L., _Earth Song: A Prologue to History_, American West Publishing Co., 1970.
Colbert, Edwin H., _Evolution of the Vertebrates_, John Wiley and Sons, Inc., 1969.
Cook, Harold J., _Tales of the 04 Ranch_, University of Nebraska Press, 1968.
Cook, James H., _Fifty Years on the Old Frontier_, University of Oklahoma Press, 1980.
Gould, Stephen Jay, _Ever Since Darwin: Reflections in Natural History_, W. W. Norton and Co., 1977.
Howard, Robert West, _The Dawn-seekers_, Harcourt Brace Jovanovich, 1975.
Johnson, Kirk R. and Richard K. Stucky, _Prehistoric Journey: A History of Life on Earth_, Roberts Rinehart, 1995.
Lanham, Url, _The Bone Hunters_, Columbia University Press, 1973.
Laporte, Léo F., _Evolution and the Fossil Record_, W. H. Freeman Co., 1978.
Larson, Robert W., _Red Cloud: Warrior-Statesman of the Lakota Sioux_, University of Oklahoma Press, 1997.
Mason, Stephen F., _A History of the Sciences_, Collier Books, 1970.
Meade, Dorothy Cook, _Heart Bags & Handshakes: The Story of the Cook Collection_, National Woodlands Pub. Co., 1994.
Osborn, Henry F., _Cope: Master Naturalist_, Princeton University Press, 1931.
Paul, R. Eli, _Autobiography of Red Cloud: War Leader of the Oglalas_, Montana Historical Society Press, 1997.
Plate, Robert, _The Dinosaur Hunters: Othniel C. Marsh and Edward D. Cope_, McKay Co., 1964.