Keweenaw Rocket Range
The Keweenaw Rocket Range is a truly interesting and unique site. Between 1964-1971, a team from NASA and the University of Michigan launched rockets that would collect meteorological data. The site was one of five others around the country. Dozens of rockets were launched here, with the shortest being a few feet tall to the largest being the 28 foot tall Nike-Apache rockets. Some were launched from buoys located between the peninsula and Manitou Island. Getting to the site takes some effort but it's not difficult (see link below). A small marker commemorates the site and all that remains is the concrete launch pad with the steel rail on which the rockets could be turned to change their direction.
https://en.wikipedia.org/wiki/Keweenaw_Rocket_Range http://www.cityofhancock.com/historical-pictorial-view.php?target=71 http://www.yooper-michigan.com/keweenaw_rocket_range.htm