The town of Copper Harbor was established in roughly 1844 when the Pittsburgh and Boston Mining Company began mining copper there. (Wikipedia: Copper Harbor, Michigan).
Tawas Point, like South Branch Trail Camp, is a state park, and would have been established in the year 1919, according to the DNR.
South Branch Trail Camp is a Michigan state park. According to the DNR all but two Michigan state parks were established in the year 1919.
According to chippewanaturecenter.org the center got it's start in 1963 in Midland, Michigan.
Pictured Rocks National Lake Shore was established on October 15, 1966 according to the National Park Service website.