This trail isn't much on its own in terms of riding, but it does lead to one of the more spectacular viewpoints that I've been privileged to visit. For that reason alone, I recommend following this short trail up the hill.
Once you arrive at a saddle just to the east of Lookout Mountain, the trail is very difficult to follow. It mostly dissolves into nothing but a few scattered cairn piles. You'll probably either want to stash your bike and hike up, or lug your bike up with you for some hike-a-bike.