Fort Pierce Mountain Bike Trail features 3 miles of hiking trails near Ft. Pierce, FL.
Exit I-95 at State Road 70 (Ft. Pierce/Okeechobee exit). Drive west to the second light (FL Turnpike), get into your inside LT turn lane and make a u-turn at this intersection, immediately on your RT is a dirt road. Turn RT on this dirt road. You can also continue to pass the FL Turnpike overpass intersections and make a u-turn further down SR 70 to be on the safe side and pass back through the FL Turnpike overpass intersections and make a RT turn onto the dirt road as you pass the east side light of the FL Turnpike overpass intersections. Pleas keep in mind that your RT hand turn is at the offramp exit of the FL Turnpike Toll Booths. Follow the dirt road until it stops at the trail head. About half a mile back.
http://www.tripleblaze.com/trail.php?c=3&i=1343