Starting at Freeport theres a short paved section then turns to crushed smoothed lime stone. last seven miles into Butler the trail is over grown in some areas, and may be difficult (cross logs c*** in trail) in some parts as some land owners in the area don't like people on the trail since it's there property. This sections in the process of being cleared and limestoned. The Bufflo creek runs along side the trail for most of it.
Lots of trailheads along the trail. http://www.butlerfreeporttrail.org
http://www.singletracks.com/item.php?c=1&i=983