Michigan

History: 

The original stamp mill was located close to Houghton, on Portage Lake. Runoff silt from the mill went into the lake, however, and threatened navigation in this important channel. The government threatened heavy fines and so the mill was moved.

History: 

Information is a little scant on this location, but I have found reference to a facility being here as early as January 18, 1872.

100 acres of land were purchased and cleared, on which were grown potatoes, hay, oats, corn and various other vegetables as well as horses, cattle and other livestock. Very few tax dollars were used in its operation or upkeep as it became largely self-sufficient.

History: 

The Quincy Mining Company was formed in 1846 as the result of a clerical error. During the great mining rush of the area, the same piece of land was inadvertently sold to two different parties. After discussions between the directors of the two interests, it was decided they should merge their interests and proceed.

History: 

Calumet Air Force Station began operations in 1953 as part of the second wave of construction of such sites. It opened with AN/FPS-3 and AN/FPS-5 radars. In 1956, an AN/FPS-6 height-finder radar was installed, and 1958 saw further improvement with the installation of the AN/FPS-20 search radar.