Mainline

Mainline is the perfect rectangular boulder found tucked away towards nail up rock and below the back porch.

Mainline starts on the sloping rail down and right, campus, slap and heel hook your way up the rail and head left. Big moves out to a non-existant slope-crimper that only is alive in the right conditions. Heel Hook and Continue slapping up, lock off and head straight up to the small crimps and top out.

Found below the back porch, way right of Bonnies Problem, on the same trail as Nail Up. Look for the perfect rectangular block.

Multiple Pads are needed. One for covering a dangerous boulder, and the rest for a flat landing.