Paul Jay Bradt (1904–1978) has been called the father of rock climbing in the Washington, D.C., area. He was instrumental in developing interest in the sport, was a founding member and first chair of the rock climbing branch of the Potomac Appalachian Trail Club, and pioneered historic climbs and cave explorations in the 1930s and 1940s.Bradt was introduced to rock climbing by Gustave Gambs (1868-1958) who had learned the sport in Europe. He soon became an active proponent of rock climbing, introducing many people to the sport, some of whom became leaders in the field, such as Don Hubbard, Arnold Wexler, and Herb and Jan Conn. Bradt and his colleagues explored and developed early climbing routes at Great Falls, VA, Carderock, MD, Seneca Rocks, WV, Old Rag Mountain in Shenandoah National Pa