I ventured over to the East side of Mellenthin to check out an area I have been wanting to. It was a mixed bag of snow conditions but I was able to find soft quality turns in steep northerly facing terrain. Below treeline the entire snowpack is faceted and I was able to produce a few small loose/dry slides. While small, they can take you off your feet. Nearing teeline and above, the snow is hard from the wind. There is a stout wind crust that is difficult to break through with your probe and there was no collapsing or cracking above tree line other than in isolated, small wind drifts that are protected by small trees or other drifts.
Here is an old slide near/below tree line in open/rocky terrain
I dug a pit at 11000 on a NE aspect. The snowpack is almost entirely faceted but there was a pronounced weak layer of fist hard facets between 13-23cm. Above this there is 4F facets and a small layer of wind blow snow on top. I did an extended column test and got ECTN17 on the weak layer at 13cm