Fresh avalanche and many recent avalanches

We rode up Denny Creek below Lionhead Ridge, then around to the north, through Watkins Creek and into the top of Targhee Creek. We saw a lot of old and recent avalanches that happened at various times over the last week, and in a wide variety of terrain. On lower elevation, generally non-wind-loaded terrain in the trees we saw at least 4 avalanches that were 2'+ deep and 100'+ wide. Near ridgelines there were many avalanches, harder slabs, 2'+ deep breaking hundreds of feet wide.

On our way out we saw a fresh avalanche in Watkins Creek that we think was triggered remotely during the day by a group that was riding in a flat meadow above, where we saw their tracks at least 150 feet away (photo). This slide was 2-3' deep and 100-150' feet wide, breaking on old sugary snow. HS-R3/4-D2-O. We rode along the flat terrain above the avalanche and could feel our sled tracks punch through the supportable slab into weak snow at the bottom of the snowpack.

We felt a couple collapses while sitting on our sleds, and saw a couple long shooting cracks while riding. We dug a snowpit in Targhee creek on a northwest facing slope at 9,435'. We had an ECTP27 below a 2.5' deep slab, sitting on 1.5' of weak sugary snow.

Skies were mostly sunny with a light breeze out of the north.