We could boat along the northern coast and have a colony there if we want to avoid passing through Yaklands, but that is far away, in extreme cold with a lack of resources, and not guaranteed to have what we want unless a gelogical survey says so.
So if we had some method of sustainability, a colony in Snow country could be viable in a few decades (better steam ships for costal traval is one answer). Or a century even.
But I am not a good planer, since I am just brainstorming here.
I guess it would depend on where the mines would be, though I find it hilarious that we are already planning on how to transport the stuff as if we have already conquered and tamed the extremely hostile area (both in climate and people living there)