Buzz's Ridge K-Pass

Along egress area of powerline cut. I was 4th rider to enter slope in non-cornice lower angle point to south of open area. Each skier entered one at a time with radio comm for successive skiers to enter when lower skier in safe location. I was last, only snowboarder. Tracks tightly spooned along edge of trees. I was traversing more north towards, not into, but closer to open area to be left of last track. Expected possible loose dry sluffs. Saw fractures open 1 meter above my traverse. Slab moving under me, breaking into blocks. Was able to get to crown, arrest fall and watched propagation while broadcasting warning to group below. They were well clear. Slide didn't run past first roll over. Was able to take pictures, measure sizes, examine slide bed, failure plane etc. Rode down bed surface to run out zone, transitioned to lower angle, joined group below.