As a big-time hunter myself, I'm glad you got them all out. It sounds like the ones that stayed back were well prepared. Surprise snowfall is no joke and can catch out even the best mountaineers. Countless day hikers have lost their lives in smaller mountains like the Adirondacks in Upstate NY, let alone the big mountains in the Western US. Thankfully it's never happened to me, but I personally never venture into the mountains without the ability to survive for weeks if needed.