Planner and originator of the Appalachian Trail and a cofounder of the Wilderness Society, Benton MacKaye (1879-1975) was a pioneer in linking the concepts of preservation and recreation. Spanning three-quarters of a century, his long and productive career had a major impact on emerging movements in conservation, environmentalism, and regional planning. MacKaye's seminal ideas on outdoor recreation, wilderness protection, land-use planning, community development, and transportation have inspired generations of activists, professionals, and adventurers seeking to strike a harmonious balance...