Travel was Cardiff Fork, then entering the Room of Doom in Mineral Fork from Cardiac Ridge. Curious about snow depths I pulled out my probe and was finding about 6ft of snow on Cardiac Ridge. Upon entering the Room of Doom was finding quite a bit a variability in the snow depth, but generally seemed quite a bit less than was in Cardiff. Since I haven't been in the Room of Doom all year decided to dig a hole in the starting zone at about 10,300ft N facing. What I found was about 2ft of fairly strong snow sitting on top of three distinct weak layers, I was thinking the column would fail on the uppermost weak layer, but to my surprise upon isolation of the column it failed on the bottom weak layer which consisted of some sort of decomposing ( either rime or wind crust ) over a layer of facets. It seems to me that it would take quite a load to activate this layer because it was bridged by fairly strong snow. Once I was down lower in the drainage noted that the snow pack was quite a bit shallower and much weaker than in the upper bowl. Pics, snow pit with the weak layers illustrated, snow pit with the failed column at the bottom of it.