Chadwick is located in Southwest Missouri and is one of the best trails in the state.  It covers about 12 square miles and is said to have over 80 miles of trails for ATV's, motorcycles, and moutain bikes.  It is recommended to ride with a group of riders because of the challenging terrain and how easy it is to get lost. 

Click here for more information: http://www.fs.fed.us/r9/forests/marktwain/recreation/sites/chadwick/