The Assabet River refuge comprises over 2,333 acres of varied woodland, wetland, fields, ponds and streams, with historical and archeological sites. It is divided into a 1,900-acre northern section, a 300-acre southern section, and 91 acres scattered along the Assabet River in Stow. The terrain is primarily flat but includes some prominent hills; elevations range from 170 feet near the river to 320 feet on Walnut Hill. Seventy percent of the refuge is forested with pine, oak and maple. There are over 470 acres of diverse wetland habitat including an Atlantic white cedar swamp. This jewel is connected to about 1,000 acres of other diverse protected space.
To date, biological surveys have identified over 650 plant species, 135 bird species, 25 mammals, 17 reptile species and 19 species of fish. More details on the species and ecology of the refuge can be found in the Refuge's comprehensive conservation plan (CCP) available at assabetriver_final05.pdf.
Access to the refuge is through the main entrance off Hudson Road in Sudbury and from the north entrance on White Pond Road in Stow. We'll meet at the visitor's center. See here for directions:
To get to the main entrance from the east, from Sudbury Center head west on Hudson Road for 3 miles to 680 Hudson Road (Sudbury). Turn right (north) into the refuge entrance drive at the refuge's sign. Parking is available about 50 yards up the drive. Continue along the drive to reach the Visitor Center.
To get to the main entrance from the west, from Hudson Center, head east on Main Street into Sudbury, passing the Massachusetts State Fire Academy. Turn left (north) into the refuge entrance drive at the refuge's sign at 680 Hudson Road (Sudbury). Parking is available about 50 yards up the drive. Continue along the drive to reach the Visitor Center.
To get to the main entrance from the north, take Rte 27 south to Fairbank Road, south (right) onto Fairbank Road, follow to Hudson Road, turn right and follow posted signs driving west to the entrance.
The north entrance to the refuge can be reached off of White Pond Road in Stow. White Pond Road is located on the south side of Great Road (Rtes 62/117) about 3/4 of a mile east of Lower Village.