Just twenty miles west of Boston lies an oasis for wildlife – Great Meadows National Wildlife Refuge. Roughly 85 percent of the refuge’s 3,850 acres is comprised of valuable freshwater wetlands stretching along 12 miles of the Concord and Sudbury Rivers. The U.S. Fish and Wildlife Service protects and manages Great Meadows as nesting, resting, and feeding habitat for wildlife, with special emphasis on migratory birds. The diversity of plant and animal life visible from refuge trails provides visitors with excellent opportunities for wildlife viewing and nature study.

In 1944, Samuel Hoar, a hunter donated the first 250 acres of land that now makes up the refuge. The refuge now consists of two units of land (Concord Unit and Sudbury Unit) in seven historically significant towns – Billerica, Bedford, Carlisle, Concord, Lincoln, Sudbury, and Wayland.