Fort Chaffee Tank/humvee Trails features 12 miles of hiking trails near Fort Smith, AR.
from I-540: Take exit 8 (Rogers Avenue) and head east towards St. Edward Mercy Medical Center. Continue past hospital to Massard Road. Turn Right on Massard Road and continue approximately 3 miles to Wells Lake Road (on left). Park behind old stone school house on the corner of Wells Lake Road and Massard Road.
http://www.tripleblaze.com/trail.php?c=3&i=2693