Ethan Carr, FASLA, is professor of landscape architecture at the University of Massachusetts Amherst and an international authority on America's public landscapes. He is author of Wilderness by Design: Landscape Architecture and the National Park Service, Mission 66: Modernism and the National Park Dilemma, and The Greatest Beach: a History of Cape Cod National Seashore, coauthor of Olmsted and Yosemite: Civil War, Abolition and the National Park Idea, lead editor of Public Nature: Scenery, History, and Park Design, and coeditor of Volume 8 of The Papers of Frederick Law Olmsted.