By Mary Drew at Pasty Central (Mdrew) on Friday, September 29, 2006 - 07:10 am:
Up on the tip of the Keweenaw is a monument which, other than the concrete pad it rests on, is all that's left of the Keweenaw Rocket Range. These three shots from Roger Peterson give you a visual of the site, including a closeup of the monument so you can read all about it and even the GPS coordinates, should you venture up that way yourself! When you stop and think about the history of this spot and what took place here, it's pretty amazing that Michigan's first rocket fired into space was sent up from this very spot in the Keweenaw. Perhaps the most amazing part of it, though, is that it was launched on January 29, 1971, in the middle of the winter here UP North!
Here's a map from the archives that shows you where the rocket range is located.