We set off several avalanches today in the Miller and Rocky bowls above Tony Grove Lake. Most of the slides were dry loose sluffs, but we did set off a couple of small soft slabs in the Rocky bowl. Avalanches occurred on North to East aspects and failed above the rain crust from last Sunday. The most notable slides occurred in Miller bowl. The slides started in the steep upper section of Miller Bowl (approximately 40 degrees) and entrained all the new snow about twenty feet wide running 400 vertical feet leaving, a shinny exposed rain crust in its path. The deposit at the bottom piled up in trees and appeared to be up to 4 feet deep. The slides were all relatively slow moving and could easily be outran but were more difficult to negotiate as they collected more and more snow.