Demonstrator Wall is the clean brown face high on the left before the first waterfall. It goes from the corner on the right to a crack on the left which divides this wall from Snake Eyes. All climbs are accessed from the Demonstrator Ledge which runs the length of the cliff and all climbs use gear for anchors.
Edited for historical accuracy: Demonstrator Wall is the correct name for this cliff. The name "80 Foot Wall" was added by later climbers.