The Little River rises near West Bowdoin at the junction of Fisher Stream and Purington Brook and flows south, joining the Androscoggin River just east of Lisbon Falls. The river forms the boundary between the town of Lisbon in Androscoggin County to the west and the towns of Bowdoin and Topsham in Sagadahoc County to the east.
^U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National MapArchived 2012-03-29 at the Wayback Machine, accessed June 30, 2011