This is the most brutal climb in the area. The first couple miles are on a tough grade through loose gravel, but nothing unbearable. Then it gets really steep. Then it gets steeper, still on the wretched gravel. Then come the switchbacks. Every time you think you're all the way up, you come around a bend or another false summit that tells you otherwise. But the scenery's good and the downhill is a lot of fun, although most don't see it as worth the climb. I was going to do this as an uphill leg for the Jones Park or Pipeline downhills, but by the time I got to the top, I was too whipped to attack them, so I simply turned around and came back down St Marys Falls. It took me less than three hours, but it was an excruciating three hours. Recommended for masochists only.
Follow the directions to Buckhorn. They share the same trailhead and both start by riding up Gold Camp Road. Follow Gold Camp Road past the entrance to the Buckhorn singletrack. Go around the left turn and up and over the collapsed tunnel. Once on top of the collapsed tunnel, the singletrack climbs to the right.
http://www.singletracks.com/item.php?c=1&i=2512