Slide in a Hillmans Highway

By Tyler Buckeridge

Date of Observation: January 1, 2020  12:30 PM
Location of Observation: Hillmans about 2/3 of the way up. Under where there is currently a very large boulder blocking most of the trail. Right around the first corner.

The snowboarder above me who was the only other person in Hillmans let of a slab about 35 feet wide right under this boulder 2/3 up Hillmans. There is a debris field about 100 feet long and 35 feet wide, or a almost as wide as Hillmans at that point. Deep and dense debris too, I could walk over the top of it like it was cement. Hillmans is still 13 inches of heavy on top of boulders which explains why there wasn’t more activity, lot of anchors and not a lot of snow in most spots, where that rider let the slide loose was probably the only spot that had enough snow to slide yet, everything else was a mine field not a snow field. Not sure about above the boulder though, I stopped after seeing the debris and hearing him tell me he let a slide loose, higher up may have more spots that could go. It won’t let me put it in as yesterday because it’s a new year and it’s only showing 2020 but this happened 12/31/2019.



Snowpack observations are one part of the complex puzzle which is your decision to enter avalanche terrain. Some observations may include stability tests. It’s important to understand that the results of a stability tests are seldom conclusive anywhere, but particularly in snow climates and terrain like ours where the primary driver of instabilities is wind drifted snow. Many stability tests exist and each works best with specific avalanche problem types. Stability test results should never be used alone as an indication that a slope or conditions are safe particularly when more obvious red flags are present. Please use this page as part of your information gathering process, but don’t make decisions based on a single piece of information. A good article that summarizes some of the issues associated with snow and avalanche observations can be found here.

The Mount Washington Avalanche Center cannot verify the quality or accuracy of any observations that come from the general public.


See an avalanche or evidence of previous avalanche activity?  Near-miss? Snowpack observations?

Your observations are valuable to an accurate forecast! We welcome observations from everyone. You don’t need to be an avalanche professional to submit helpful observations, just be as detailed and accurate as you can.