This trail is better walked & ridden in sections... The walking generally being on the uphill portion. The trail crisscrosses the creek in several spots, most of them having small footbridges in various states of disrepair.
However, coming back down is the treat at the end of the trek. The trail is populated by masses of roots, rocks, stream crossings, small drops, and foot-dabs aplenty. It is not a trail for the faint-hearted, or cheapo bikes.... but the challenge you get is worth the effort.
Head up Gold Camp road to the High-Drive Rd./Captain Jack's trailhead. Follow Gold Camp {closed to vehicles} till you get to Cheyenne Creek. On the right side of the creek is the trail which leads up either to the Buckhorn cut-off trail on the left, or Seven Bridges on the right.
http://www.singletracks.com/item.php?c=1&i=1680