Michel Aco (fl.1680–1702, also known as Michel Accault) was a French explorer who, along with René Robert Cavelier, Sieur de La Salle and Father Louis Hennepin, explored the Mississippi River. Aco became La Salle's lieutenant because of his knowledge of Native American languages and his abilities as an explorer. When the party reached the Illinois River; Aco, Hennepin and another man were sent to explore the upper Mississippi. During their exploration they became the first Europeans to see Carver's Cave and Saint Anthony Falls. They were later captured by Sioux Indians and held until the influence of Daniel Greysolon, Sieur du Lhut won their release. He was brought to the mouth of the Wisconsin River, and went on to explore the Wisconsin River, the Fox River down to Green Bay, Wisconsin, and Machinac, Wisconsin, and finally, in 1681, to Montreal. After his exploring days were over, Aco settled in Illinois and became a trader, marrying the daughter of a Kaskaskia chief in 1693.

[edit] References

• Who Was Who in America, Historical Volume, 1607-1896. Chicago: Marquis Who's Who, 1967.

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