Brunswick Falls, also known as Pejepscot Falls, lie on a rocky section of the Androscoggin River, bordering the towns of Brunswick and Topsham, Maine in the US. First occupied by Paleoindians and the Wabanaki Native Americans, the falls were a plentiful resource for food and trade. Throughout colonial history, the Industrial Revolution, and into the 21st century, the falls have been a vital part of Brunswick and Topsham's economy, harnessing its power for energy development.

Topsham is a town in Sagadahoc County, Maine, United States. Topsham was included in the Lewiston-Auburn, Maine metropolitan New England city and town area. The population was 9,560 at the 2020 census. It is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area. The town is home to the annual Topsham Fair.