We’ve only driven to the NWT twice. There are only a handful of roads that allow this.
Along the Dempster, there is a monument denoting the border.
It’s basically on a pass in the middle of nowhere. We didn’t see another soul for hours.
On the way back south, this the sign you see. There as snow on the ground everywhere, and it was raining. I suspect there are places around here that the snow never fully melts all year.