Took a break from some sweet sweet turns to dig a pit at 7400 ft, NE aspect, with a slope angle of 21. My compression test failed while isolating (CTV) at 18cm from the base, right above a crust. I conducted an Extended Column Test which resulted in a failure on 9 at the same depth (18cm) and propogated across the column (ECTP9). Throughout the day, we heard several loud "whumpfs" but I didn't see any cracking.