There was 4-5" inches of soft snow from earlier on the week. The early Dec storm underneath is very supportable and this combo made for some hero snow where there is enough to make turns. We had one very large collapse once we approached the shallow north face we were planning to ski. We actually stopped and dug a pit right where it collapse to get an idea of what was going on, and to support a UAC research project (SCIENCE!). There was 43 cm of old snow from October that is a mess of crusts and facets. Our ECT failed underneath the first October crust, but did not propogate surprisingly. We did not have any other red flags, so this is kind of a mixed bag for making a call on snowpack stability with any uncertainty. You can be sure that on north sheltered faces there is probably facets somewhere underneath you - classic La Sals.