Avalanche: Hatcher Pass

We sled access skied around the willow side of Hatcher Pass from 11am-6pm. Very nice day, mild temps, no winds. Tons of people getting after it. Spotted a few human triggered slides. Aforementioned by other observers: Womens Run, and Stairstep. I spotted one on the shoulder in the upper drainage/shoulder behind Stairstep. Our party triggered a small 20 ft x 20 ft slab in recent storm snow dropping off a ridgeline into north facing slope at 4600′ near Bald Mtn Ridge. We made about 30 skier-sled laps as a group on north and west aspects from 3500-4600′, and the small slab was the only incident.