Northwest of Manchester and southeast of Henniker, the Contoocook River provides good trout fly fishing opportunties. The Contoocook River is accessible 1) from Contoocook Lake downstream to the area marked with signs and wire in West Henniker, 2) from a point 2,500 feet above paper mill dam in Henniker to the Lower Falls Dam in Boscawen including the Hopkinton Everett Flood Control Area (daily limit of 2 brook trout), and 3) from the Lower falls Dam in Boscawen to the confluence with the Merrimack River.
This river is managed by the New Hampshire Fish and Game Department for trout fishing. There is no closed season.
Overall, Contoocook River is the 3rd most popular fly fishing river of all 19 fly fishing spots in New Hampshire.