The Owen's River Gorge, a steep 10-mile canyon on the upper Owen's River in eastern California, has long been a popular destination for roped rock climbing in the West. Lesser known and further north form the standard climbing zones, a small field of boulders sit perched on the literal edge of the Gorge--teetering blocks of volcanic tuff carved from the cliffside by ancient water flows. Here, a lone climber ascends a knife-edged arete as the final rays of sun sink behind the Sierra Nevada.