From Power-line trail, up the bench below Ptarmigan’s North Face, across the boulder field and into the bottom of S-couloir.
High winds, no precip, warm 32F.
The surface was a mix of scoured rock, scoured old melt-freeze crusts, and more recently deposited wind slab.
No formal tests were performed. Hand sheer tests showed a softish slab with poor bonding to the snow beneath (where there was snow beneath it). Collapsing/whumphing of the wind deposits was expected but not observed.