Big loop with some good climbing and good dh too
Start at middle road in sunderland. Follow the left near where it turns to dirt. Follow this up the mt. Many choices with the right ones looping the mt with a fire tower at the top. The power line descent is one of the best dhs in western mass. Lots of double/fire road with some single track
http://www.singletracks.com/item.php?c=1&i=6473