Some boulders and cliffbands are used by the park to demonstrate primitive shelters, not just for climbing, therefore reduced chalk use is highly recommended. Do not slap chalk onto the rock. Being good stewards and maintaining a healthy relationship with other users and with the park rangers should be a high priority for any visiting climber.
A variation of Geometry Class. Start deeper in the cave on a jug and head directly backwards towards the rail feature. The climbing is lowball and the rock is mediocre on the starting section, but this alternate start encourages a mirrored entrance into the rail that results in some pretty sick movement.