Ice climber triggered and caught in avalanche in Upper Mill Creek, Absarokas

Out of Advisory Area
Code
HS-AFu-R3-D2-I
Elevation
9000
Aspect
NW
Latitude
45.27760
Longitude
-110.50300
Notes

Outside advisory area, but seemed relevant to report a climber triggered avalanche today (12/11/2019) at around 9000 ft, on a 35 degree slope on a NW aspect. Solid size 2, triggered roughly 15m below the crown (depth 20-40 cm, width 15m) Failed on a density change below a fresh windslab, ran around 100m and deposited 1m of debris towards the bottom of the runout. HS-AF-D2/R3-I. No injuries.

Number of slides
1
Number caught
1
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Foot penetration
Trigger Modifier
u-An unintentional release
R size
3
D size
2
Bed Surface
I - Interface between new and old snow
Slab Thickness
30.0 centimeters
Vertical Fall
300ft
Slab Width
15.00ft
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year