Arlington lies in the Valley of Vermont between the Taconic Range to the west and the Green Mountains to the east, with most of Arlington's land mass lying in the Taconic Range.
Five prominent peaks are located within the town: Grass Mountain, Spruce Peak, The Ball (also locally referred to as West Mountain), Red Mountain, and Big Spruce Mountain.
The highest peak is Grass Mountain at elevation 3,109 ft (948 m).

According to the United States Census Bureau, the town has a total area of 42.4 square miles (109.9 km²), of which 42.2 square miles (109.4 km²) is land and 0.19 square miles (0.5 km²), or 0.45%, is water.
The Battenkill River, famous for trout fishing, flows through the center of town.
Arlington lies in the Valley of Vermont between the Taconic Range to the west and the Green Mountains to the east, with most of Arlington's land mass lying in the Taconic Range. Five prominent peaks are located within the town: Grass Mountain, Spruce Peak, The Ball (also locally referred to as West Mountain), Red Mountain, and Big Spruce Mountain. The highest peak is Grass Mountain at elevation 3,109 ft (948 m).
According to the United States Census Bureau, the town has a total area of 42.4 square miles (109.9 km²), of which 42.2 square miles (109.4 km²) is land and 0.19 square miles (0.5 km²), or 0.45%, is water. The Battenkill River, famous for trout fishing, flows through the center of town.
Arlington, Vermont