Quick report

McCallum Creek

Avalanche.org observerEastern Alaska Range
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Quick report

We skinned up the first peak on the north side of McCallum Creek from the highway. We saw many small avalanches on the steep bluffs on the S side of the creek, some down to ground level. During the ascent, the small steep gullies had numerous slides and cornice failures, likely from the weather/wind event around the end of January. There was a larger avalanche on the peak of what we ascended that curved around from the south aspect all the way to where we couldn't see on the East aspect. The snow had slid almost all the way to the ground, on a thin ice layer. I think the rocks that are visible melted through the layer, as sun effects on the snow were visible throughout the day (sun crust with hoar layer on top). We dug a pit in a wind loaded gully close to the west-most edge of the avalanche, aiming to dig all the way to the ground but we stopped when we discovered there was 370cm! And just 20m to the west there was only 30cm. We dug down 150cm and couldn't get anything to fail with the normal compression test. With substantial pounding with both arms, there was a failure at 30cm. This gave us confidence for the brief moments of steeper slopes we would ski, and had a fun ski that included carvable wind buff, soft wind crust and even some powder. There were notable avalanches on the other side of McCallum Creek, most obviously on the slopes of each peak on the end of the three ridges that jut out towards the creek. Beyond those avalanches, we did not see any avalanches in the valleys on the South side of the creek.