Avalanches at Blue Lakes

Pic 1: A very recent natural D2 beyond the Wilderness boundary between Upper Blue Lake and Granite Lake. We observed a few inches of new snow accumulation during the morning, and as best as I could tell, no new snow had accumulated over this avalanche (photo taken from a distance with full zoom). Approximately 8400ft, E aspect. Although I couldn't get closer via snowmobile due to the boundary, an ECT nearby propagated at the new/old interface.

2x ECTs also propagated at the new/old interface on a NE aspect above Lost Lakes. All ECTs propagated right above the light crust at the new/old interface, where I think I could see very small surface hoar or at least small angular grains (pic 2), but it was not a very obvious layer. While performing the ECTs at Lost Lakes, I felt and heard a collapse that propagated about 150ft away from me.

Pic 3: A recent natural crack, where a failure occurred but the slab did not displace. E aspect near Border Ruffian, also about 8400ft.

Other riders in the area reported fresh looking, angular crowns 2-3ft deep, but this was second and third hand info.