It can be one of the pitfalls of adventure climbing - the risk of a fatal avalanche.
10 trekkers managed to come out of the ordeal shaken but alive on Saturday, however, one of the climbers still remains missing.
Search and rescue teams were out in full force, as a helicopter scoured the slope looking for the missing climber. Unfortunately, the weather took a turn for the worse and officials had to call off the search on Saturday afternoon. Continuing avalanche dangers prevented a ground search as well. To make matters worse, due to safety issues, the land/air search may not start up again until Monday.
The slide occurred early Saturday morning, when several trekking teams were climbing toward the summit of Rainier. Reports indicate that a large plate of snow broke away from the mountain and it ran for 366 metres, resulting in 11 people being overtaken by the rush of snow.
Injured climbers were airlifted to hospital, and were said to be in stable condition with lacerations and other injuries.
This is the 34th avalanche fatality nationwide for the 2009-2010 season, according to the Colorado Avalanche Information Centre.