Definitely looks like a crude representation of Split Rock. You can visit it on the beautiful north shore of Lake Superior. You can find lots of information here:
http://www.mnhs.org/places/sites/srl/highway.html
And here's a picture for ya:
Mnmouse
Editing to say: If you link to that website, click on the "Featured Programs" link (listed on the right of the page) and you can read about the annual lighting in memory of the sailors who died when the Edmund Fitzgerald went down.
[ August 20, 2005, 21:34: Message edited by: mnmouse ]