Bellamy River

Coordinates: 43°07′44″N 70°50′56″W / 43.129°N 70.849°W / 43.129; -70.849

The Bellamy River, in Strafford County, southeastern New Hampshire, is a tributary of the Piscataqua River about 15 miles (24 km) long. It rises in Swains Lake in Barrington, 9 miles (14 km) west of Dover. It flows east through the Bellamy Reservoir in Madbury and through Dover, then southeast as a tidal river to Little Bay, the channel connecting Great Bay with the Atlantic Ocean.

The river at one time provided water for swimming behind a dam at Bellamy Park in Dover. This park was a favorite spot for local neighborhood children and young adults, but fell into disrepair in the late 1960s. The Dover High School class of 1976 held a school-approved burning of the remains of the dam as a class activity.

A short distance down the river from the park is the location of a former mill building, abandoned in the mid-20th century. The river helped power machinery in the mill.

Further along is the final dam, at the site of the former Sawyer Woolen Mills, a large manufacturer in Dover during the late 19th century and early 20th century. The river supplied the power to this large factory.