Here is the Lake County Historical Society’s website. They are the ones who maintain the Lighthouse, Edna G tugboat, and railroad and 3M museums in Two Harbors.
Here is the Cook County Historical Society’s website. They take care of the Saint Francis Xavier Catholic Church in the old settlement of Chippewa City.
Here is the St. Louis County Historical Society’s website.
And finally
this is the Finland Minnesota Historical Society’s website. They run the Finnish Heritage Site and Museum about halfway between Little Marais and Finland MN on Lake County 6.