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Avalanche: Hatcher Pass

Location: Arkose Ridge/ Pk 5100

Date:
Observer:
Route & General Observations

Managed to link up the 3 bowls East of Delia creek.
Very large cornices.

Illegal snow machine activity in the valley system south of USGS “Lonesome Mine.”

Avalanche Details
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Trigger UnknownAvalanche Type Unknown
Aspect UnknownElevationunknown
Slope AngleunknownCrown Depthunknown
WidthunknownVertical Rununknown
Avalanche Details

Lots of wet loose activity on sunlit slopes, initiating off rocks.
Semi-recent slab avalanches on Divide Ridge, 2 side by side. South aspect, ~3000’.
Recent slab avalanche 1 ridge east of USGS “the knob.” East aspect, ~3750’, 1-2’ crown, ~150’ wide. Possible remote trigger, the debris covered tracks below. Unfortunately no photo.
Sluffing in steep + shaded terrain.
Evidence of prior cornice collapse in north bowl of pk 5100.

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.
Weather

Blue, sunny, mostly calm at ridge tops, cold in shade.

Snow surface

Powder, faceting in certain places, very slight wind texture, suncrusts

Photos & Video
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