Cousins River

The Cousins River (Native American: Sisquisic)[1] is a 4.7-mile-long (7.6 km), primarily tidal river in southern Maine. Rising in the town of Freeport at the junction of Harvey Brook and Merrill Brook, it flows south and forms, for most of its course, the boundary between Freeport and Yarmouth. It flows into the Royal River just west of its mouth in Casco Bay.

Cousins River Sisquisic (Native American)
The river below Granite Street in Yarmouth, near its confluence with the Royal River
Location
Country	United States
Physical characteristics
Source
• location	Maine

The river, Cousins Island and Littlejohn Island are named after Englishman John Cousins (c. 1596–1682), who emigrated from Marlborough, Wiltshire.