TY - BOOK AU - Rabbitt,Mary C. ED - United States TI - The Colorado River Region and John Wesley Powell U1 - 557.881 PY - 1969///. CY - Washington: PB - United States Government Printing Office, KW - Geology KW - Colorado River Valley (Colorado-Mexico) N1 - Includes bibliographical references; -- T. 1 John Wesley Powell: pioneer statesman of Federal science, by Mary C. Rabbitt. -- t. 2 Stratified rocks of the Grand Canyon, by Edwin D. McKee. -- t. 3 Geologic history of the Colorado River, by Charles B. Hunt. -- t. 4 The rapids and the pools: Grand Canyon, by Luna B. Leopold N2 - A collection of papers honoring Powell on the 100th anniversary of his exploration of the Colorado River, 1869-1969 ER -