Reservation headquarters is in the section of the Blue Hills between routes 138 and 28, on Hillside St. between Houghton Pond the intersection with Unquity Rd. Mountain Biking is permitted on most of the dirt roads and many of the trails in the sections of the Blue Hills between route 138 and route 28. 21 miles maximum. Dayhike or backpack. Turn onto Ravine Rd and up that dirt road to end.
Trailhead is at the end of the dirt road.
I recommend Gorge Brook up, Carriage Rd combined with Snapper down. The hike goes along a stream into a ravine thusly carved then sharply up yielding spectacular views of the whites from a southerly angle. It is the southern-most 4000 footer. A moderate hike.