This is how you Snapchat while climbing Mount Everest

Cory Richards had just summited Mount Everest, without oxygen, and his attempt to share his hard won victory with the world was being scuttled by the most mundane of tech issues. He was standing more than 29,000 feet above sea level, on the world's tallest peak, and his cell phone wouldn't work.

Richards and Adrian Ballinger, his climbing partner for this expedition, had been Snapchatting their goal to summit Everest for more than a month, posting photos and videos daily to their shared account EverestNoFilter