A part of the Rails-to-Trails project in Tennessee, the Tweetsie Trail connects Johnson City with Elizabethton where part of the old East Tennessee and Western North Carolina Railroad line once ran. It's now a great walking or cycling trail and a nice, relaxing place to pick up a few caches.
This is located where the trail crosses a road. Railroad ties from the old rail line were used extensively along the trail to construct trail barriers and to create the awesome benches along the trail. This cache is hidden in/on one of there railroad ties AND it's in plain sight.
TONS of people use this trail, so stealth is a must.