Sphinx Mountain
Northern Madison
Code
HS-N-R3-D3-O
Elevation
9000
Aspect
SW
Latitude
45.15820
Longitude
-111.47700
Notes
On sunday 2/23/20 skiers near Sphinx Mtn. saw a recent 2-4' deep natural avalanche that broke on old persistent weak layers. Best estimate for timing is between 2/16 and 2/22. from IG: @skishot
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Natural trigger
R size
3
D size
3
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year