A bit remiss of me, I have not checked this for a few weeks.
@ Odile, thanks for the info. We have a pair of Nissan Navarras both fitted with BF Goodrich All Terrain tyres, which perform very well in snow

There are two/three drivers in each vehicle as well, so stops (apart from the obvious requirements) not usually required. We do have chains, but so far have never had the need to fit them (and yes we do check them to ensure they are still OK each season).
As you live in the area, perhaps you would be kind enough to give me an update on the conditions closer to the end of January when we are travelling. Thank you.
@ rackiec.. Groan, shakes head, LOL