An Alaska hiker is lucky to be alive after he was buried during an avalanche and another hiker saw his feet and freed him, officials said. The hiker was alone on Flattop Mountain around 1 p.m. Saturday when an avalanche buried him, the Chugach National Forest Avalanche Information Center said. Alex Kuprienko of Anchorage was hiking past the area around 2:30 p.m. and saw moving feet sticking out of the snow, he said.