My head full of 2 stroke snow bike jetting, pipe singing and everything associated with my new ride, I grabbed everything except the most important safety gear, my phone, then second my real camera. Realizing this near the foot of Hoyt, I saw a sledders head and one ski poke out of the snow momentarily, called my wife, then headed back down. I wanted to see how the snow was sticking to our short lived high and dry so, on the way down, I skinned around some north facing avalanche terrain at 8700 ft and dug in sheltered lower angle terrain on the slope, maybe 28-30 degrees. Wow, 285 cm deep. Unfortunately, all this new snow is sitting on a very thin facet layer, ~1cm thick, that appears to have formed during the few days consecutive in February we didn't get now. Although stubborn, it collapsed and propagated ECTP 26 SC Q1 70 cm from the surface or 215 cm above the ground. With a little shovel shear on the back, the block fell in the pit revealing a clean planar surface of small-grained facets. For me, certainly a concern moving forward and I felt worth reporting without pics.