Three snowmobilers rode near Harts Pass when they triggered a 'slab avalanche.' One rider was killed, another injured.

A snowmobiler died Friday and another rider was injured in a large slab avalanche in the North Cascades, according to the Northwest Avalanche Center.

Emergency services are usually too far away from the scene of an avalanche, and time is important,” Simon Trautman, a national avalanche specialist, said. “A person trapped

A snowmobiler has died after being caught in an avalanche in the North Cascade mountains, according to the Northwest Avalanche Center. A group of three snowmobile riders were near Hart’s Pass on Friday when they triggered a large slab avalanche.