Letchworth State Park FLT

The Finger Lakes Trail in NY is generally off-limits to mountain bikers. This 22-mile section is an exception, begining on the east side of 14,350-acre Letchworth State Park and runs along the rim of the 600-foot deep Genesee River Gorge.  The trail itself is a fast, rock and root-snarled singletrack that skirts the gorge rim and constantly dips in and out of ravines. The trail is only open to riders from June through October. Second, the trail doesn’t drain well, so mountain bikers are not permitted to ride following a rain.

http://www.fltconference.org/trails/hike-the-trail/map3/

http://nysparks.state.ny.us/parks/79/details.aspx