The Naugatuck River is a 40-mile-long river located in the state of Connecticut. It flows from the Berkshire Mountains in Massachusetts and travels southward through several towns, including Naugatuck, Waterbury, and Seymour, before joining the Housatonic River. The river is known for its scenic beauty and recreational opportunities, such as fishing, kayaking, and hiking along its banks. It also plays a significant role in the local ecosystem and has been the focus of various conservation efforts to improve water quality and habitat for wildlife.