[VIDEO] A Line Across The Sky – Tommy Caldwell and Alex Honnold go big in Patagonia

Long considered impossible, coveted by many and attempted by a few, the Fitz Traverse has fueled the imaginations of climbers in Patagonia for decades. Tracing the iconic skyline of Cerro Fitz Roy and its six satellite peaks, it spans four miles and 13,000 feet across snow and ice-covered rock, with epic route finding and endless rapelling.