The Weskeag River is a short tidal river in Knox County

Knox County, Maine

Knox County is a county located in the U.S. state of Maine. As of 2010, the population was 39,736. Its county seat is Rockland. The county is named for American Revolutionary War general and Secretary of War Henry Knox, who lived in the county from 1795 until his death in 1806. The county was...

, Maine

Maine

Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...

. The Abenaki Indians

Indigenous peoples of the Americas

The indigenous peoples of the Americas are the pre-Columbian inhabitants of North and South America, their descendants and other ethnic groups who are identified with those peoples. Indigenous peoples are known in Canada as Aboriginal peoples, and in the United States as Native Americans...

 called it Wessaweskeag, meaning "tidal creek" or "salt creek". From its source (44.0702°N 69.1606 °W) in South Thomaston

South Thomaston, Maine

South Thomaston is a town in Knox County, Maine, United States. The population was 1,416 at the 2000 census. A fishing and resort area, the town includes the village of Spruce Head.-History:...

, the river runs 1.2 miles (1.9 km) northeast and southeast to its confluence with Marsh Creek, then 4.2 miles (6.8 km) southeast through its estuary

Estuary

An estuary is a partly enclosed coastal body of water with one or more rivers or streams flowing into it, and with a free connection to the open sea....

 to the Muscle Ridge Channel of West Penobscot Bay. Its mouth is on the border between the towns of South Thomaston and Owls Head

Owls Head, Maine

Owls Head is a town in Knox County, Maine, United States. The population was 1,601 at the 2000 census. A resort and fishing area, the community is home to the Knox County Regional Airport...

.