LONGMIRE, Wash. -

Rescue crews are searching for two snowboarders who were stranded on Mount Rainier overnight in heavy snow.

Mount Rainier National Park spokesman Kevin Bacher says the men, ages 20 and 21, called Sunday afternoon to report they had become lost in the storm while descending from Camp Muir. He says they had winter gear, smart phones and a compass, but no overnight gear.

Bacher identified them as Derek Tyndall and Thomas Dale. He says the men are cold but not hurt. They took shelter overnight by digging a snow cave.

More than two dozen people are trying to reach the men, who are believed to be at about 7,500-foot elevation near Paradise. The area has gotten about 20 inches of fresh snow.

Olympic Mountain Rescue's Roger Beckett says 10 members of their advanced team are helping with the rescue. He says members of Tacoma Mountain Rescue are also assisting park rangers.