White Oak Mtn Biology Trails features 15 miles of hiking trails near Collegedale, TN.
Take I75 North to Knoxville. Get off on the Ooltewah exit and turn right on Lee Highway. At the stop light turn right onto Little Debbie Parkway. Go left at Apison Pike. Follow Apison pike until you get to University Dr and go right. You can park behind the Outdoor Center (huge climbing wall).
http://www.tripleblaze.com/trail.php?c=3&i=2737