Valanga

Cooke City - north of town

Ian HoyerCooke City
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Quick report

We saw a big avalanche on Mineral Mountain that ran full path on the E face down to Sheep Creek. Hard to tell dimensions since the crown had filled in (likely broke sometime in the last week), but it had run down into the flats and broke trees up to 8" diameter. There were also several smaller wind slabs.

We dug on Town Hill at 9100 ft on an East Aspect.  HS168. ECTX. Moist, 2-3 mm, 4F+ facets just off the ground.

Rode up onto the debris of the slide on Chimney Rock. Probed in a couple places in the debris and it was 9-10 ft deep. 

Dug at "Almost Died" on Henderson Bench. East aspect. 9500 ft. HS 236.  The softest facet layer low in the snowpack was 1F-. 

More tracks today climbing high on the big alpine faces. No fresh avalanches observed. 

Avalanche

Size
D3 R3
Type
HS
Aspect
NE
Trigger
N
Elevation
10000 ft

On 12/30 we saw a big recent avalanche on Mineral Mountain that ran full path on the E face down to Sheep Creek. Hard to tell dimensions since the crown had filled in (likely broke sometime in the last week), but it had run down into the flats and broke trees up to 8" diameter.