Fox Pond Park is managed by the Town of Plymouth. The trails at the park are a project of the Pemi Valley New England Mountain Biking Association. 

From I-93, take exit 24 for US-3 and NH-25 toward Ashland and Holderness. Head West/North on NH-25/US-3. Travel approximately 5.7 miles, then turn left onto Warren Street.  Turn right onto Langdon Street. Turn Left onto Prince Haven Road. The parking lot is on the left.

The TrailFinder website has a description and map of a hike at Fox Pond Park.