Legendary Rock Climber Lynn Hill

Lynn Hill, 54, is regarded as one of the best rock climbers in the world. She was the first person to free climb the edge of El Capitan, known as the Nose, in Yosemite Valley, Calif., and she was the first to do it in one day in 1994.

Hill has been pushing boundaries since she started climbing as a teenager in the 1970s, a time when there were very few women in the sport.

"It’s not exactly the same," Hill told Here & Now's Jeremy Hobson. "After years of climbing, it becomes more of a moving meditation, and it’s unlike the first day you climb when you look down and you get that feeling in your gut of, ‘Oh my god, what am I doing here.’ So you get used to being off the ground and it’s a much different challenge now than it was."

Hill is one of the climbers featured in the documentary "Valley Uprising," about the history of rock climbing in California's Yosemite Valley. It premieres on the Discovery Channel on April 25, as part of Elevation Weekend.