Very cool! That would be a great place to see. It makes one wonder what the glyphs meant... I've heard there are some petroglyphs in northern MN, too.
Very cool! That would be a great place to see. It makes one wonder what the glyphs meant... I've heard there are some petroglyphs in northern MN, too.
There are some in Wisconsin too, in Roch-a-Cri State Park. It is in Central Wisconsin very near where I lived for 10 years, but at the time I never knew about the petroglyphs.