Well... I live basically on the old Cold War DEW Line so... I'm either in the best spot to just watch the missiles sail overhead. Or I'm in the WORST spot where either they will strike the DEW line sites with missiles, or the missiles will be intercepted above our territory.
Either way, this is NOT the ideal spot to spend a Nuclear Winter as it's already cold enough, so we will be hoping to head in a south-westerly direction towards Northern Saskatchewan. Everything important in Saskatchewan is in the bottom third of the province minus the Uranium deposits in the tippy top north of Saskatchewan, but I don't really think we'll have to worry too much about uranium mining starting up any time soon after a major event like this.
Truthfully, though, after seeing the Russian Federation in their Special Military Operation, I highly doubt even 1/6th of those nukes would make it to their intended targets.
RE: The Nuke Map USA Edition