There's about 86 routes, including all the original routes from the old North Gramps guide (all with with updated descriptions). I've only been up there twice, so have only added any extra route info to routes I'd had experience with, or located for sure. If you have any other information, please feel free to add it.
You can access the Western side from Hollow Mt Carpark, and the Eastern side from main road / near the Telephone tower (marked trail).
There's also a new sport cliff on the Eastern side (Interpretation Wall), and some other long - lost bolted routes on the Eastern Walls including a few closed projects on the Araps style compact wall.