1: Another hiker , Carsten Lillelund Pedersen , wrote on Facebook that  a huge avalanche swept over basecamp  that had almost 500 tents , saying he survived by hiding behind a stone structure . 2: Afterward , the camp 's dining tent was transformed into a makeshift hospital headed by the camp manager , who happens to be a doctor . 3: Dining tent at one base camp has been transformed into a hospital , another hiker says .
1: basecamp 2: the camp 3: one base camp