LeRoux - That is a good question. There used to be a Stroh's Brewery Co. in St. Paul, Minnesota...but I think it has been closed for a while. As far as it being made other places I'm not sure.
Leaving the beer outside in a tub during the winter at parties is a pretty common thing in MN.
What were you in Minnesota for? (just curious).
One of my sisters & her husband like to have "international beer" parties. On your party invite is the name of a country that you have to bring beer from. It is really fun but there is always way too much beer.