Toured to the base of the chutes on Stairway. Dug a pit on a relevant slope near the bottom entrance of a chute. We found a 10cm thick windboard buried 45cm down with 5cm of facets above and below it. CT (12,16), ECTN (17), and PST (End 60/100) tests all were reactive with Q1 as the facet layer above the windboard collapsed and slid on the windboard.
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