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.
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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.