The Eightmile River runs for 13.4 miles (21.6 km)[1] to Hamburg Cove in the town of Lyme, Connecticut.

The East Branch of the river begins 1/10 of a mile west of the junction of Route 85 and Witch Meadow Road, about 1 mile north of Salem, Connecticut.

A popular paddling route begins about 3 miles southwest of Salem along Darling Road about a half mile southwest of the junction of White Birch Road.

Most of the route is whitewater reaching Class III-IV at its most difficult with some flatwater and quickwater between the rapids.

Begin at Pecks Meadow Pond outlet dam: