South of Boston near Milton, the Blue Hills Reservation includes 7000 acres of varied terrain. It ranges from woodlands to marsh to rocky hills. There is an extensive, well-marked and maintained trail system with miles of fire road, double and single track. There are great views of Boston and the south shore from several hill tops.
The terrain open to mountain bikers at Blue Hills consists of the Houghton Pond area and the Great Blue Hill area. This area represents about one-third of the total area of the reservation. Within this area, approximately 95% of the double-track and 50% of the single-track is open to cyclists. Although these trails represent perhaps 20% of the total trails at Blue Hills, Blue Hills is big; theres a lot of stuff to ride here. Much of the double track is gravelly fire road but significant portions are rocky and quite challenging. The variety of single track is more limited than the double track but there are enough trails that even the experienced rider will not run out of challenging terrain.
The BHR is 8 miles south of Boston. To reach the trailhead from Boston, follow US93 south to Exit 3 (Houghtons Pond). Turn right at stop sign onto Hillside Street. Houghtons Pond is located approximately 1/4 miles on the right; Continue 1/4 miles to the reservation headquarters on the left.
Or, from US93 south use Exit 2B. Proceed north on SR138 for 1/4 mile to light with Mobil station on your left. Take a right at light onto Hillside St. Travel 1 1/4 miles on Hillside St. to Houghton Pond parking area on your right. There is plenty of parking in this lot
Overall, Blue Hills Reservation is the 3rd most popular mountain bike trail of all 35 mountain biking rides in Massachusetts.