Catch A Leprechaun 5K
Essex
The races are out-and-back on the Nipmuck covering a distances of either15 miles or 5K, following the lovely Fenton River for much of the course. The trail has some interesting variations over beautiful terrain, with several small bridge crossings, a climb to a 50 ft cliff, fields, and woods. Both races starts at Mansfield Hollow State Park and winds its way to Old Turnpike Road (off Route 44).