The Boundary Waters Canoe Area Wilderness controversy remains today the most volatile, hotly debated Minnesota environmental issue in recent decades. In the 1970's, one crisis after another threatened the area -- mining, logging, motorized use -- all of which led to a major national congressional battle beginning in 1975. Troubled Waters describes the turbulent and controversial conservation history, focusing on the explosive struggle from 1975 to 1978 to pass the BWCA Wilderness Act in Congress.