Rare petroglyphs in Michigan provide link to Native American past

CASS CITY — In a discarded pile of garish yellow plastic chain – the cheapest possible option to keep people away from things they’re not supposed to touch – Stacy Tchorzynski spied a little piece of red printed fabric wrapped around an offering of tobacco.

She picked it up and carefully untied it from the chain, which until this day had been used to keep people from stepping on the low dome of sandstone, carved hundreds of years ago with images sacred to Great Lakes American Indian tribes.

http://www.freep.com/story/news/local/michigan/2016/06/09/rare-petroglyphs-michigan-provide-link-native-american-past/85652460/