North Branch Sugar River

The North Branch of the Sugar River is a 10.1 mi river located in western New Hampshire in the United States. It is a tributary of the Sugar River, which flows to the Connecticut River, which flows to Long Island Sound.

The North Branch of the Sugar River begins at the confluence of Sawyer Brook and Stocker Brook in the town of Grantham, New Hampshire. The river flows south through the town of Croydon, reaching the Sugar River in the town of Newport. In Croydon, the river's flow is interrupted by Spectacle Pond, a 40 acre two-lobed lake. New Hampshire Route 10 follows the North Branch for nearly its entire length.