On our 3rd lap on the North Side Burn in Sheep Creek, we traveled up the ridge to take a look at the steeper terrain to the west along the ridge. From our protected vantage point, we could see a recent wind slab that appeared to release naturally some in the past 24 hours. The crown was obscured, but I would code the avalanche as SS-N-R1-D1-S. The avalanche was approximately 3-6" deep, 25' wide, and ran for ~60'.
Location (from list)