Touchstone Wall

The Touchstone Wall is a named sandstone big wall in Zion National Park that became a focal point for debates about clean aid and desert big-wall technique. It is significant not for a single hard free pitch but for its sustained aid and the ethical conversation it generated: climbers like Jeff Lowe demonstrated methods intended to leave minimal physical trace on the rock. The line requires long approaches and multi-day strategies typical of desert big-wall climbing, and it has been used as a teaching ground for low-impact, removable-protection techniques.