Climbers on the Porkchop Buttress. The Bone (crack on right side) is rated 5.5. Jacob's Ladder (left side - climber is behind tree on the inside corner) is rated 5.6. There are 53 documented routes that range from 5.2 to 5.12d in this part of the park, known as the Dutchman Rampart, which is located in the West Bluffs. All can be climbed with a top rope. Photo taken May 21, 2005.