The Ozark Trail is a woderful place to go. 
I understand it is very long! How many states are involved, I wonder?
I belive it's ntended to reach from St. Louis to Arkansas.
Arkansas
Arkansas ( ) is a state in the southern region of the United States, home to over 3 million people as of 2018. Its name is of Siouan derivation from the language of the Osage denoting their related kin, the Quapaw Indians. The state's diverse geography ranges from the mountainous regions of the Ozark and the Ouachita Mountains, which make up the U.S. Interior Highlands, to the densely forested land in the south known as the Arkansas Timberlands, to the eastern lowlands along the Mississippi River and the Arkansas Delta
Ozark Trail (hiking trail)
The Ozark Trail is a hiking, backpacking, and, in many places, biking and equestrian trail under construction in the Missouri Ozarks in the United States. It is intended to reach from St. Louis to Arkansas. Over of the trail have been completed as of 2008, and the estimated length when finished will be at least . When joined to the Ozark Highlands Trail in Arkansas, the full hiking distance from end to end will be at least , not including a large loop through the