The Nashoba River is a scenic waterway located in central Massachusetts. It flows through several towns, including Ayer, Groton, and Littleton, before eventually joining the Merrimack River. The river is approximately 30 miles long and is known for its natural beauty and recreational opportunities, such as fishing, kayaking, and hiking along its banks. The Nashoba River watershed is an important ecological area, supporting diverse wildlife and plant species. It plays a crucial role in the local environment, providing habitat for animals and contributing to the region's water supply. Conservation efforts are in place to protect the river and its surrounding ecosystems.