Henderson Mountain
Cooke City
Code
HS-AMu-R4-D3-O
Elevation
10000
Aspect
NE
Latitude
45.05760
Longitude
-109.95200
Notes
From obs 3/18/23: "Watched two riders on the north side of Henderson / Daisy pass high marking. One triggered an large avalanche and got stuck at the crown. Crown was taller than him. Guessing 8-10’ deep and 200+ yards wide. His friend had his back turned to the slide and didn’t see it happen. We were across around the sheep mtn/ Scotch Bonnet area and watched the whole thing happen. We boogied over there as fast as possible to help."
More media and story: https://www.instagram.com/p/Cp8qvlfO4sM/ (Credit: C. Diffley)
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Snowmobile
Trigger Modifier
u-An unintentional release
R size
4
D size
3
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
72.0 inches
Vertical Fall
450ft
Slab Width
600.00ft
Images
Attached Videos
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year