jul 1, 1673 - LOUIS JOLLIET & JAQUES MARQUETTE
Description:
Following the Illinois river upstream, they then turned up its tributary the Des Plaines River near modern-day Joliet, Illinois. They then continued up the Des Plaines river, and portaged their canoes and gear at the Chicago Portage. They then followed the Chicago River downstream until they reached Lake Michigan near the location of modern-day Chicago.
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