Green Mountains, range of the Appalachian Mts., extending 250 mi (402 km) from north to south and extending from S Que., Canada to Vt. Mt. Mansfield, 4,393 ft (1,339 m) high, in Vermont, is the tallest peak. The range has low, rounded peaks, fertile valleys, and streams. Timber and maple syrup are the main products of the heavily forested mountains, much of whose area is in national and state forests. The mountains also yield high-quality marble and granite, with world-famous quarries in Barre, Vt. The scenic Green Mts. are a year-round vacation area, well known for its ski resorts. The Long Trail for hikers runs 261 mi (420 km) from Massachusetts to Canada; the Appalachian Trail runs through the southern part of the Green Mts.

Part of the Appalachian Mountains in the U.S. It extends for 250 mi (402 km) through the centre of Vermont and has a maximum width of 30 mi (50 km). Many peaks rise to more than 3,000 ft (900 m); the highest is Mount Mansfield at 4,393 ft (1,339 m). Known for their skiing facilities, the mountains are traversed by the Long Trail (part of the Appalachian National Scenic Trail). Green Mountains National Forest, which covers 214,000 acres (86,600 hectares), was established in 1932.

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