The Ouachita Trail (which I will sometimes refer to as the OT for brevity) is a 220 mile long trail that runs roughly east-west from about the middle of Arkansas (just west of Little Rock) into eastern Oklahoma. It is one of the shortest “thru-hikes” in the U.S. and can usually be done in around two weeks. To quote the FOT (Friends of the OT) website (http://www.friendsot.org/index.htm)
The Ouachita National Recreation Trail stretches 223 miles through the beautiful Ouachita Mountains of Arkansas and Oklahoma. The “Ouachita Trail”, as it is more commonly known, runs from Talimena State Park in Oklahoma, through Queen Wilhelmina State Park and ends at Pinnacle Mountain State Park, near Little Rock, Arkansas. This premier trail asset is used by hikers, backpackers, hunters, and mountain bikers. It is a non-motorized single track trail open only to foot traffic and partially open to mountain bicycles.
The profile of the trail shows that the highest point is just under 3,000 feet. There are some decent climbs (especially going east) but no real killers. The profile is shown with the west to the left (i.e. the trail markers assume hiking from west to east).