ロープなしで900mの絶壁を初登攀、米ヨセミテ
Lauren C. Tierney, NG STAFF; Charles Preppernau Locator Map Art: Clay Wadman SOURCES: Mark SynNott; Antoine Guerin, Battista Matasci, Michel Jaboyedoff, and Marc-Henri Derron, University of Lausanne.
Lauren C. Tierney, NG STAFF; Charles Preppernau Locator Map Art: Clay Wadman SOURCES: Mark SynNott; Antoine Guerin, Battista Matasci, Michel Jaboyedoff, and Marc-Henri Derron, University of Lausanne.
