Libby Sauter is an American mountaineer, rock climber, former pediatric cardiac intensive care nurse educator that now works as a primary care provider at a low income clinic in the USA. In 2007, she became the first woman to walk the Lost Arrow Spire highline.Sauter and her climbing partner, Mayan Smith-Gobat, set the women's speed record climbing The Nose on El Capitan, in 2014. In 2017, she became the youngest woman inducted into the American Alpine Club Hall of Fame.