Rocky Mountain futures : an ecological perspective / edited by Jill S. Baron ; foreword by Paul R. Ehrlich - Washington : Island Press, [2002] - xxviii, 325 p. : ill. (some col.), maps (some col.) ; 24 cm. Includes bibliographical references and index ISBN: 1559639539 (acid-free paper) Hadiah 1559639547 (pbk. : acid-free paper) Subjects--Topical Terms: Nature--Effect of human beings on--Rocky Mountains Subjects--Geographic Terms: Rocky Mountains--Environmental conditions