A group of experienced local snowmobilers were riding in Ephraim Canyon when the fourth rider on the hill started getting stuck, grabbed some throttle as he turned away from the slope, triggering the avalanche above him. He was carried about 200' down slope with only his hand sticking out of the snow. The group was prepared for their own self rescue and quickly excavated their buried partner. The sled was completely buried and took roughly an hour to dig out. The rider came out unscathed... the sled was not as lucky.