You can still find evidence of a reactive slab on southeast aspects near treeline in this area on Berthoud Pass--if you take the time to dig in the snow. You might not, however, get any clues (cracking or collapsing) just traveling through the terrain.

Immediately east of the Stanley slide path on Berthoud Pass

I parked at the upper switchback on the east side of Berthoud Pass and climbed west up to the ridge immediately east of the Stanley slide path. I returned to the truck via the same route. I traveled on east and southeast-facing slopes below and near treeline.

The layer of concern is a melt-freeze crust above facets and about a foot below the snow surface. There is a 1F hard slab on top of this layer combo. I had repeatable ECTP results from the elbow below the melt-freeze crust. There are a couple of other crust-facet combo layers towards the bottom of the snowpack They are currently less concerning than the weak interface higher in the snowpack, however if we see a significant loading event they could easily become problematic as well. The snowpack below treeline was supportive to travel on skis, which made for easier travel than I expected. That said, there isn't really a slab below treeline in this area.

FEW clouds with moderate northwesterly winds and temperatures around freezing.