Giant hand print from Copper harbor
U.S. Highway 41, which runs all the way to Miami, Florida, begins in Copper Harbor. The petroglyphs are near Copper Harbor, on the northern tip of Keweenaw Peninsula. The petroglyph site near Copper Harbor is west of town near the end of the local bay.
Copper Harbor (Keneenaw) Petraglyphs: The hand of a giant beside the hand of the author (By Jay Stuart Wakefield, MES & AAPF)
http://www.ancientamerican.com/backissues.html#cover85 (photo of issue #85 bottom of page)
Perhaps member Bob Wheeler from Houghton (30 miles south of Copper Harbor) can tell us more about the glyphs.