With a 1375-acre surface area, Carmi is the fourth largest natural lake located entirely within Vermont. It is 7.5 miles around, averaging about 20 feet in depth, and is 33 feet at its deepest point. The lake supports northern pike, walleyes, and other warm water species. The lake drains north into Quebec’s Pike River, then into Lake Champlain. Lake Carmi was once much larger. In the thousands of years since the last ice age, the southern end of the original lake has silted in, creating wetland forests and the third largest peat bog in Vermont.
Most of the 140-acre bog lies within Lake Carmi