Remote trigger - Upper Black Queen

Dense to sparse trees skied well with no whumphing or signs of instability. Good coverage to about 1750m.

Facets above Dec 11 rain crust have begun to round but are still seperate from the above snowpack. Around single or 2 finger density, 5cm thick above crust. This was the bed surface. Slide was a sheer planar slide without much propagation across slope. Start zone was right around 2 Subalpine trees. Crack from the crown climbed across the steep rollover of the start zone but did not slide on oyside edges of the slide zone. 60cm slab can be seperated into 2 sub slabs, the top 25 being Dec 21 storm snow (top 10cm light fluffy snow, somewhat hoar like, bottom 15cm dense rounded snow, likely wetter snow accumulation from earlier tha evening) the remaining 35cm being overall storm accumulation from the past week (also somewhat rounded snow with more metamorphose composition). These two sub slabs are seperated by a very small and weak rain or melt freeze crust that breaks to the slightest touch. Remote trigger was intentional, but very spooky. The whumph that came with the slide sounded like a bomb, and a crack was observed heading in both directions across slope for atleast 20m but did not slide due to undulations in the terrain. Basically, We were lucky. A slide like this on a steeper more consistent slope plane could easily reach size 2 or 3.