The trail starts up a doubletrack heading east out of the parking lot. 1/4 mile in, take the fork to the right. It's singletrack from here to the other end at Darby Canyon. Some sections are smooth and fast, others are rocky and boulder strewn. Probably not a trail for a first timer, but any intermediate can do it. It can be done as an out and back to Darby Canyon, or you can go west out of the Canyon to Stateline road, and take the road back to where you started.
Starting at the Stoplight in Driggs, go East on Ski Hill Road. About a mile out, there is a fork in the road. Go right (which is just straight ahead). You will come to an intersection at the county dump. Turn left, and follow the road to its end at Stateline Road. Turn Right on Stateline, then take a left on a gravel road about 100 yds down Stateline. .5 miles up the gravel road turn right and follow the road to a parking area. You ride from here.
http://www.singletracks.com/item.php?c=1&i=3042