Duck River is a river located in the state of Tennessee, USA. It flows for approximately 284 miles, making it one of the longest rivers in the state. The river begins in Marshall County and eventually merges with the Tennessee River near the city of Waverly. The Duck River is known for its diverse ecosystem, which includes various species of fish and wildlife. It is a popular destination for outdoor activities such as fishing, kayaking, and birdwatching. The river also plays a significant role in the local economy and provides recreational opportunities for residents and visitors alike.