The trail actually goes through much of western new york although not all is accessible to bikers. This chunk though has pretty much everything though. Creek crossings, tight singletrack, roots, some short climbs. Basically a fast trail but pretty technical. Especially for the area. Only the one trail so just keep going til you get tired then turn around.
ake 390 south from Rochester to Exit 7(Mt. Morris). Take Rt 408 West(or possibly south). There will be an intersection with 408 and 36, where you make a left then an immediate right to stay on 408. Drive right out of town and on the right side will be a sign for Mt Morris Dam park. Turn right on to that and drive til you see the parking lot on the left. Park in the parking lot and the trail is on the left of the entrance to that parking lot. There are actually two parking lots, both will be on your left, to get to the second one just keep going straight until you can;t go straight anymore and then turn left and park in the parking lot (you should be able to see the dam from this parking lot). I would reccomend starting from the second parking lot.
http://www.singletracks.com/item.php?c=1&i=385