East of Plymouth, the Waterville Valley Mountain Bike Park has lift-accessed mountain biking with 30 miles of trails to explore from the top of Snow Mountain.
To reach the Waterville Valley Resort ski area from Boston and the south, head north on US93 to Exit #28. Continue on SR49 (aka Valley Road) for 11 miles to the Waterville Valley Resort. The Snow Mountain trail system starts next to the Tennis Center.
Overall, Waterville Valley Adventure Center is the 23rd most popular mountain bike trail of all 24 mountain biking rides in New Hampshire.