I cheated a little bit. Never been to Kurodake, just heard about it. Just tried to figure where GN might go in November and figured the higher peaks of central Hokkaido were a possibility. It clearly wasn't Asahidake so guessed Kurodake on the other side, googled it and found a close match.
I don't think we have to narrow the places to just ski areas. They can be from hiking or mountaineering trips, beaches, deserts, cities, you name it. They don't have to be too famous and yes if people are struggling throw in a couple of clues. It's just a good excuse to show off some of the great places you've visited around the world and seeing if anyone else can recognise them!