This trail is on PRIVATE PROPERTY, although the land owner has generously allows the use of his property to mountian bikers. Repsecting this area is key to ensuring the trails existence. I have not ridden this trail yet, but I will get to riding it soon and will let you know more details about this particular trail system.
Take HWY 62 from fayetteville until you reach Farmington. There is a concrete mixing business on the left side of the road to the west of town. Turn left at the concrete mixing facility and follow the road past the one lane bridge. Once past the bridge, the road will make a 90-degree turn to the left. Exit the road to the right at this bend. At this point you will be on a dirt road, follow this road until you come to sharp bend to the left. Continue following the road straight until you come to the bottom of a concrete driveway. There is a sign for parking and/or hiking.
http://www.singletracks.com/item.php?c=1&i=2089