Very tight twisty singletrack connected by fire road. Feels like you're doing many more miles than you are. Trails are rooty with lots of sharp turns and stone wall crossings. Not big on features or stunts but there are some rollers and other interesting parts.
From the Mass Pike, take exit for Worcester and 146 (pretty sure it's 10A). Take 146 south. Get off 146 at exit 8. From offramp, go straight off it and then go right onto West Main (weird intersection). Follow for about a mile and a half. When road forks, stay right onto West Main. Park at fire house on left at intersection with Harris. Trails are across the street up gravel road.
http://www.singletracks.com/item.php?c=1&i=4669