It is a huge system of trails for advanced to expert riders. You can pick from 29 different trails, the hardest one being "Holy Chute".
Also includes 8 miles of easy singletrack xc by the river, and enduro trails on Bear Peak, which can be accessed by a mix of fire road and trail climbing. The XC and enduro trails do not require a lift pass and can be ridden for free.
From Fryeburg go to 113 to north conway and follow road to attitash.
http://www.singletracks.com/item.php?c=1&i=4465