downstream effects of large dams. Much of his early work focused on dryland rivers; for the last several years, his work has been national in scope. He has served as an officer in the Geological Society of America and is past president of the Association of American Geographers.

In public-policy work, he has emphasized the interaction of science and decision making and resolution of the conflict between economic development and environmental preservation. Dr. Graf’s work has been funded by 52 grants and contracts from federal, state, and local agencies. He has given more than 100 professional presentations and published 130 papers, articles, book chapters, and reports on geomorphology, riparian ecology, river management, and the interaction between science and public policy. His eight books include Geomorphic Systems of North America, The Colorado River: Basin Stability and Management, Fluvial Processes in Dryland Rivers, Wilderness Preservation and the Sagebrush Rebellions, and Plutonium and the Rio Grande, and he is the primary author and editor of New Strategies for America’s Watersheds and Research Opportunities in Geography at the U.S. Geological Survey. He is principal author of Dam Removal: Science and Decision Making and editor of Science for Dam Removal, and he is working on Dam the Consequences: The Effects of Dams on America’s Rivers. His work has produced awards from the Association of American Geographers, the Geological Society of America, and the British Geomorphological Research Group, and he has received a Guggenheim Fellowship, a Fulbright Senior Scholarship, and the Founders’ Medal awarded by Queen Elizabeth II of Great Britain and the Royal Geographical Society.

Dr. Graf has served as a science and policy adviser in numerous capacities for federal, state, and local agencies and organizations. He is a national associate of the National Academy of Sciences, and at the National Research Council he has been a member of the Board on Earth Sciences and Resources, the Water and Science Technology Board, the Committee on Glen Canyon Environmental Studies, the Panel to Review the Critical Ecosystem Studies Initiative for Everglades National Park, Committee on the Restoration of the Greater Everglades Ecosystem, and the Committee on Rediscovering Geography. He has also chaired the Research Council Committee on Innovative Watershed Management, the Workshop to Advise the President’s Council on Sustainable Development, and a committee to advise the U.S. Geological Survey on research priorities in geography. He chairs the Heinz Center’s committee on the Social, Economic, and Environmental Outcomes of Dam Removal and has been the river specialist on teams to advise Costa Rica on dam and river management and a member of a recovery team of the U.S. Fish and Wildlife Service for endangered riparian birds. He also serves on the Committee on Research and Exploration of the National Geographic Society. President Clinton appointed Dr. Graf to the