This Logging/Fire road enters through gate #4 on Issaqueena Lake Road
and almost immediately crosses the creek. After climbing out of the creek, continue straight. At the clear cut, go straight (left goes up, right crosses the creek again). You'll follow the creek until a fork. Turn left and keep climbing up Potbelly Pig Logging Road.
Pig Horse is accessed off the top of this road through the pines to the left, shortly before you reach the gate (and end of the road). Straight goes to another gate. Right is Rapids Trail.