A Nepalese Sherpa Dawa Tashi, who was injured during an avalanche, gets treatment at a hospital in Katmandu, Nepal, Friday, April 18, 2014. (AP Photo/Niranjan Shrestha)

Photos: Mount Everest Avalanche

An avalanche swept down a climbing route on Mount Everest early Friday, April 18, killing at least 12 Nepalese guides and leaving three miss…