Sheepscot River
Evening on the Sheepscot River
CountryUnited States
Physical characteristics
 • locationMaine
 • elevation540 feet (160 m)
 • location
Gulf of Maine, Atlantic Ocean
 • coordinates
43°48′10″N 69°42′0″W / 43.80278°N 69.70000°W / 43.80278; -69.70000
 • elevation
sea level
Length66 miles (106 km)
Sheepscot River
Branch Pond
Maine 3.svg SR 3 Palermo
Sheepscot Pond
Palermo Fish Hatchery
Meadow Brook
Weeks Mills
Hewitt Brook
Dearborn Brook
Choate Brook
Maine 105.svg SR 105 Windsor & Somerville
Long Pond
Travel Brook
Maine 17.svg SR 17Maine 32.svg SR 32 Coopers Mills
West Branch Sheepscot River
Finn Brook
Maine 126.svg SR 126 North Whitefield
Canyon Brook
Maine 194.svg SR 194Maine 218.svg SR 218 Whitefield
former railroad bridge
Head Tide
Trout Brook
Ben Brook
Dyer River
Maine Eastern Railroad
US 1.svg US 1 Wiscasset
Sheepscot Bay

The Sheepscot River is a 66-mile-long (106 km)[1] river in the U.S. state of Maine. Its lower portion is a complex island estuary with connections to the Kennebec River downstream of Merrymeeting Bay.


The Sheepscot River originates in Freedom (44°29′22″N 69°18′40″W / 44.4894°N 69.3111°W / 44.4894; -69.3111 (Sheepscot River source)) and flows southwesterly through Sheepscot Pond in Palermo and Long Pond in Somerville and Windsor. The river is bridged by Maine State Route 3 upstream of Sheepscot Pond and by Maine State Route 105 in Somerville between Sheepscot Pond and Long Pond. The river continues flowing southwesterly through the villages of Coopers Mills, North Whitefield, and Whitefield in the town of Whitefield. The river is bridged by concurrent Maine State Routes 17 and 32 at Coopers Mills. The West Branch Sheepscot River joins the main stem between Cooper's Mills and North Whitefield. The river is bridged by Maine State Route 126 at North Whitefield and by concurrent Maine State Routes 194 and 218 at Whitefield. The river flows south from Whitefield and becomes a tidal estuary at the village of Head Tide in Alna. The narrow gauge Wiscasset, Waterville and Farmington Railway closely followed the river through the town of Whitefield to Head Tide from 1895 until 1933 and bridged the river between the villages of Whitefield and Head Tide. At Wiscasset the estuary is bridged by the Maine Central Railroad Rockland Branch and by U.S. Route 1. Sheepscot Bay is navigable for a distance of approximately 15 miles (24 km) from Wiscasset to the mouth between Reid State Park and Southport Island.


The lower estuary is defined by large islands. The estuary is split by Westport Island. The channel east of Westport Island is considered the Sheepscot River, while the western channel is identified as the Back River. The Back River is crossed in Hockomock Bay by a tidal channel identified as the Sasanoa River. The Sasanoa River connects the Kennebec River estuary at Woolwich with the Sheepscot River estuary between Westport Island and Georgetown Island. Georgetown Island forms the west side of the mouth of Sheepscot Bay and the east side of the mouth of the Kennebec River estuary. The Back River reaches the Kennebec River on the west side of Georgetown Island. Arrowsic Island forms the east side of the Kennebec River estuary between the Sasanoa River and the Back River. Maine State Route 144 bridges the Back River from Wiscasset to Westport Island. Maine State Route 127 bridges the Sasanoa River from Woolwich to Arrowsic Island and the Back River from Arrowsic Island to Georgetown Island.

Schematic map of estuary.

Smaller islands of the estuary

The Sheepscot River portion of the estuary includes the following named islands:


In 2018 the Coopers Mill Dam was removed on the Sheepscot River. In the Summer/Fall of 2019 the Head Tide Dam near Alna was partially breached to allow easier passage for differing fish species. A pedestrian overlook was constructed in late 2019 on the re-configured Head Tide Dam. This overlook will allow locals, visitors, and tourists to access the continued restoration of the lower portions of the Sheepscot. Alewives, herring, Atlantic salmon, and resident trout species will assuredly benefit from these restoration efforts.[2]

See also


  1. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed June 22, 2011
  2. ^ "Celebrating Fish Passage Milestones on the Sheepscot River | NOAA Fisheries". 13 January 2021.

Media related to Sheepscot River at Wikimedia Commons