Hard to believe I am the one adding this trail since I was visiting when I rode it. As a result, I am no expert on the trail system, but I rode Yucca, Porta Potty, Christmas Tree and Christmas Tree Extension, and 10 Bridges. None were extremely difficult, but had some fun sections to keep you on your toes. There seems to be lots of natural rock gardens with sharp, jagged rock. There were several creek crossings, some with rock bridges you could cross on. A few simple log piles for good measure. All and all, a fun network of trails from what I experienced, but you do have to be a C.A.R.P club member ($15 annual membership) and sign in and out since it is at Camp Robinson, which is a National Guard base in North Little Rock.
Refer to www.carpclub.com for directions and additional information on membership requirements to ride the trails.
http://www.singletracks.com/item.php?c=1&i=3699