Back River (Powwow River tributary)

The Back River is a 6.5-mile-long (10.5 km) river located in New Hampshire and Massachusetts in the United States. It is a tributary to the Powwow River, part of the Merrimack River watershed. Approximately 3.0 miles (4.8 km) of the river are in New Hampshire, with the remaining 3.5 miles (5.6 km) in Massachusetts. In the 1950s, the Clarks Pond Dam was built in Amesbury, Massachusetts, creating the pond of that name. Since the pond's creation, it has been degraded by residential building in the area, and was considered "threatened" in a 2013 report, by residential run-off and silt deposits.

Back River (Powwow River tributary)

The Back River is a 6.5-mile-long (10.5 km) river located in New Hampshire and Massachusetts in the United States. It is a tributary to the Powwow River, part of the Merrimack River watershed. Approximately 3.0 miles (4.8 km) of the river are in New Hampshire, with the remaining 3.5 miles (5.6 km) in Massachusetts. In the 1950s, the Clarks Pond Dam was built in Amesbury, Massachusetts, creating the pond of that name. Since the pond's creation, it has been degraded by residential building in the area, and was considered "threatened" in a 2013 report, by residential run-off and silt deposits.