On the rear face of the Horizon Boulder:
Sit start same as "East Of Eden" at the far, lowest right of the boulder on the long sidepull. trend left and low across the face. Use the low holds and small nubbin feet (moving left over the small bush) until you link into "North Left". Once linked into "North Left", move up and exit more to the left via massive ledges to topout over at the furthest left of the boulder for the top out of "Windy Heights". Really fun!!
Rear of Horizon Boulder.