Part of a network of trails. Spend some time and explore the area.
There is a large sign in the parking lot that describes the trails. The sign suggests going clockwise, which I would recommend. The outer loop is mostly single track. There are a few fire roads that run across the loop allowing opportunities to bail or ride further. After a quick descent, the trail becomes rocky and climbs. You are rewarded with a great vista point about a mile up. You can see Fort Grant 7,000 feet below and Aravapai to the south. Then it's more climbing and soft single track climbing to a fire road. From here you can go back to the parking lot or continue on. There is a left turn off of a fire road back onto single track at about 2.6 miles that is very easy to miss. The trails are pretty well signed, thanks to S.A.M.B.A.
How to get there:
From Safford, AZ, take US Rt. 191 south for 6 miles to State Rt. 366. Turn right onto Rt. 366 and go 26 miles twisty miles to the campground. The last mile and a half are dirt. The trailhead is on the left and there is parking.
Cunningham Loop trail across the street