Frank Knowles/Little River Reserve

Frank Knowles Little River ReserveDonor : The 43-acre Frank Knowles Reserve was donated by Audrey M. Gillum, Trustee of the Ellen Knowles Jackman Trust.  The Little River Reserve includes: a) 41 acres purchased from Elizabeth Ostric, Jane Ostric, James Ostric, and Florence Hopkins; b) 39 acres purchased from Frances Durant; c) 54 acres purchased from Anne E. Dutra and Donald N. Mendes; and d) 17 acres (known as Jonny Point) purchased as a bargain sale from Whitfield Painter.

Acreage : 194 acres total

Location : Between Potomska Road and Little River | View Google Map

Year Acquired : 1996, 2002, 2005 and 2010

Access Point : Trailhead for the Frank Knowles-Little River Reserve is marked by DNRT sign and kiosk on east side of Potomska Road (next to small parking area).

Directions: Parking lot and trailhead is 7/10ths of a mile south of the intersection of Potomska, Rock O’Dundee and Gaffney roads

Volunteer Stewards: Kate Frias & Thad Herliczek

Additional Regulations:  No mountain biking and no horseback riding.

Caution: While hunting is not allowed on DNRT property, it is allowed on the adjacent Cornell Farm and Town-owned McBratney property. Please take note of hunting season and take every precaution. Even if remaining on DNRT property, DNRT recommends that during hunting season all visitors wear a minimum of 500 square inches of blaze orange clothing on the head, back, or chest.

Trail Map (pdf format)


The Frank Knowles-Little River Reserve is part of a 500-acre block of publicly accessible protected land surrounding the headwaters of Dartmouth’s Little River. The Reserve includes 5 parcels acquired by DNRT between 1996 and 2010. DNRT also manages the trails on the adjacent Town-owned McBratney property. Together these properties offer an abundance of ecological, recreational, and historical outdoor experiences.

Visitors can explore nearly 9 miles of hiking trails that wind through wetlands covered with ferns and mossy boulders, hillsides dominated by hulking yellow birch and white pine, glades of austere beeches, wide expanses of salt marsh, and old fields teeming with wildflowers and bird-life. A network of stone walls and several historic farmhouse and barn foundations harken back to the days when farms covered the land. The large contiguous forest areas make excellent wildlife habitat, including breeding habitat for bird species such as barred owl, wood thrush, and veery.

Boardwalk-lg homepage

The crown jewel of DNRT’s Little River Reserve is the Boardwalk Trail, which features three boardwalks over 200 feet long: one through a red maple swamp and two that cross through pristine salt marsh at the head of Little River, allowing visitors to wander over the estuarine environment so rarely accessible by foot. Benches along the boardwalk provide visitors with a place to take in salt marsh vistas extending nearly half a mile south toward the mouth of Little River. Here the salt marsh is healthy and thriving, with broad waves of Spartina and saltgrass interspersed with sea lavender and high-tide bush. A wooded upland trail across DNRT’s Jonny Point property connects the two salt marsh boardwalks and the trail concludes at The Trustees of Reservations’ Cornell Farm on Smith Neck Road.