Several non-standardized test between 3700’ and 4100’ on a NE aspect showed failure of a 20-25cm slab. Observed results were planar but resistant.
Small slope tests on 50-55 deg angle however, showed no results at both 3700’ and 4100’
There is a 5-7cm Pencil hard, unsupportable crust underlying 4cm(@10:30am) HST up to at least 4100’