Lake Willoughby Natural Area
Lake Willoughby, a deep, cold-water lake within Lake Willoughby Natural Area lies in a u-shaped trough cut into granite by glacial scouring. Mountains and 1,500-foot cliffs rise abruptly from the lake's east and west shores. It is the deepest lake in Vermont and one of the most significant and scenic examples of glacial erosion in the northeast.
Year designated: 1967
Please remember, National Natural Landmarks (NNLs) are not national parks. NNLs are owned by a variety of public and private entities and allowing visitation is at their discretion. Many NNL sites maintain public websites where additional information may be found.