Green Mountains, mountain range covering most of Vermont, extending about 160 mi (260 km) northward into Canada and southward into Massachusetts and Connecticut. The range is part of the Appalachian system. Low and rounded from erosion, the Green Mountains are a valuable source of marble, slate, and granite. The land in the lower river valleys is used for grazing, while the higher regions are heavily forested. The highest points of the range are Mt. Mansfield (4,393 ft/1,339 m) and Killington Peak (4,241 ft/1,293 m). The Green Mountains are the site of many ski resorts, including Stowe, Killington, and Mount Snow.
See also: Appalachian Mountains.