A skier was left partially buried but uninjured when he triggered an avalanche north of Bridger Bowl, Thursday.
Click here to see actual video of the slide.
Experts with the Gallatin National Forest Avalanche Center say the wind slab broke in the Hourglass chute, an area they say was one of the few places with unstable snow.
The avalanche was around a foot deep, 75 feet across and ran one thousand feet vertical.
Avalanche experts say they found a weak layer of snow underneath the surface on a nearby slope but say it didn't break because it did not have a wind slab on it.
Folks with the Gallatin National Forest Avalanche Center say it's possible other slopes in the Bridger Range have a wind slab on a similar weak layer and that wind loaded terrain, steeper than 35 degrees has heightened avalanche conditions with moderate danger.
Other slopes in the Bridger range and other mountain ranges in southwest Montana have low avalanche danger.