| Trigger | Unknown | Remote Trigger | Unknown |
| Avalanche Type | Unknown | Aspect | Unknown |
| Elevation | unknown | Slope Angle | unknown |
| Crown Depth | unknown | Width | unknown |
| Vertical Run | unknown |
Avalanche: Summit
Location: Tenderfoot
Toured to 3300′ on Tenderfoot, skied 3 laps on a SW aspect in 2-12″ of powder without incident. We observed a recent large natural on the W face of Butch, as well as numerous older naturals predating the recent storm.
Avalanche Details
Observed a recent natural slab on the West face of Butch, propagating ~700' wide and running ~1500'. It likely occurred during the last storm, picture attached below.
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observer Comments
Large natural avalanche seen on Butch Pk.
Snow surface
Variable on the ridge, mix of powder and wind skin below.
Snowpack
Pits on a W aspect at 2640' showed 35cm of right side up storm snow over a thin melt-freeze crust. A thin layer of facets below the melt-freeze crust yielded an ECTN23 and CT30 Q2. We found no concerning results between two ECT's and one CT, although recent avalanches suggest deep instabilities exist across Summit Pass.
Butch Peak natural
Tenderfoot 2/23