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Post by Logan on Jun 5, 2016 6:10:24 GMT -6
Quartzite outcroppings form a long ridge that runs for 23 miles above a modest area of grassland in southern Minnesota. Three tributaries of the Minnesota River meet up within this prairie space, which first became a destination point for humans 7,000 years ago. Ancient peoples may have used the waterways to get to this spot, which is now called the Jeffers Petroglyphs Historic Site. Archaeological evidence indicates many tribes traveled many miles to the site to dig for a red-brown mudstone, to view star constellations and to worship. Some of the journeyers who stopped along the ridge carved myriad symbols into its hard surface. For many millennia, an unknown number of these petroglyphs survived exposure to wind, rain, harsh winters and being scratched by glaciers. Read more: www.mankatofreepress.com/news/lifestyles/thousands-of-petroglyphs-rediscovered-at-jeffers-site/article_44c21540-2780-11e6-8617-2327fed6f945.html
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