While not many of us, there are a few. I have focused my search for Yoopers (Sorry Yooper) in the Houghton area, there are others. I also own and semi maintain htto://upopencarry.org just as a starting point to give people interested a place to call or email for questions and help. I am north of you in Lake Linden, about 2.5 hour drive away, but do come down there and would be happy to look you up next trip I make. I swore there was also someone in the Escanaba area, as well as Marquette in the past.
If you search around, you will see there are about 5-7 Yoopers who OC on occasion. We have done lunches and a few other small things. There are not a lot of us, but I must say up here not many give it a second thought, firearms are just a part of the culture here.