Just two weeks ago I returned to the UP for the first time since 1982, when I led a group of 20 geologists, techs, and geophysicists on a diamond exploration project. I had just about forgotten how BIG the UP is. The reason for the return was to watch some of the Lake Superior Performance Rally, an auto race of the European flavor with small cars driving at impossible speeds on gravel roads.
I've already promised the wife to take her along next year, and it'll be her first return since those long-ago days when we were still in our 20s and didn't yet have kids. Nowadays, we've got to tear ourselves away from our grandson to take a trip.
Ski, from what I can gather from your excellent writing, a UP traverse by truck camper would be right up your and The Lady's alley. The uninhabited distances and dimensions pale by Western standards, but it's entirely possible to spend a day or three riding around on forest roads, fishing for brook trout, hiking and mountain biking, and finding a disbursed campsite by a lake or stream, all without seeing any or much of anybody else. The rolling hills to small mountains provide great scenery, and whereever one gets a view of Lake Superior, it's golden.
Foy