SNOQUALMIE PASS, Wash. -- Two of three people who went on a hike in the Cascades over the weekend were found dead on Tuesday. A third hiker survived, officials told KIRO 7 Eyewitness News.

A Bellevue couple and a friend -- all in their 30s -- were hiking on Saturday when an avalanche buried them, officials told KIRO 7 Eyewitness News reporter Alison Grande.

One man was able to dig himself out, but he couldn't find his wife and his friend. He crawled to his tent, where searchers found him Tuesday morning.

Officials said the survivor was hoisted from the area by an Army helicopter and taken to Harborview Medical Center in Seattle early Tuesday afternoon.

Video from KIRO 7 Eyewitness News showed the man, who was conscious and alert, being taken from the Army helicopter after it landed at the hospital.

The hikers disappeared near Snow Lake near the Alpental ski area in the Alpine Lakes Wilderness area of Snoqualmie Pass, about 50 miles east of Seattle in the Cascade Mountains. The lake is at 4,000 feet elevation.

Two feet of new snow fell in the area on Saturday, forecasters said.

Four people in another group of missing hikers were located off the Denny Creek trailhead. They left Sunday and the search began on Monday. Their conditions also are unknown.