A short length of trail will bring you to the loop. The loop is clearly marked with numerous red squares and the occasional trail map on small, trailside stands. It winds back and forth along hillsides in this wooded area and is bisected by a white connector trail. I hope that someone more familiar with the trail can provide a better description.
From US Highway 50 in Johnson County take State Highway 23 south to Knob Noster State Park. Follow the signs to Clear Fork Lake Area that will have you turning right (west) onto County Road DD which bisects the park. After a short distance turn right (north) into the Clear Fork Lake Area and follow the road straight to its end at the trailhead parking lot. Bathroom and picnic facilities are available.
http://www.singletracks.com/item.php?c=1&i=5007