Suggested Page Improvements to Rock On
https://www.mountainproject.com/v/111852186 is a much more representative photo.
This climb is on the vertical left edge of the Apron. From the Apron parking lot, walk up the Mamquam Forest Service Road a little more than hundred feet until a trail heads up towards the cliff. The trail should take you into the gully. The climb starts from well up the South Gully, about 500-800 feet past the start of calculus crack (about 200 feet past the rappel line from the top of the Apron). Hike the gully until looking back and right you can see a left facing corner system running the height of the cliff. It's not visible until you are a little past it. Good landmarks include the incredible arching 5.13 crack of The Great Arch left of the climb and a variety of abandoned fixed ropes in the area.