Avalanche Activity Cooke City

Multiple avalanches north of Cooke City today. On the north side of Chimney Rock a large natural avalanche happened either this morning or late last night, 400' wide and 1-2' deep. I saw several other natural avalanches on the east side of Wolverine Peak and Miller Ridge, the north side of Bull of the Woods Pass and Miller Mountain. These avalanches happened sometime just before or near the beginning of this recent storm. 

Most notably I saw a very large rider-triggered avalanche on Scotch Bonnet that was triggered today, 800' wide, 3-4' deep. Skiers nearby confirmed that they saw riders below or on the slope, however, they did not see the avalanche happen. On the east side of Henderson, I saw another rider-triggered avalanche that happened today, 200' wide, 1-2' deep.