Pierre Gaultier de Varennes

Pierre Gaultier de Varennes

sieur de La Vérendrye (November 17, 1685 – December 5, 1749) was a French Canadian military officer, fur trader and explorer. In the 1730s he and his four sons opened up the area west of Lake Superior and thus began the process that added Western Canada to the original New France in the Saint Lawrence basin. He was also the first European to reach North Dakota and the upper Missouri River. In the 1740s two of his sons crossed the prairie as far at Wyoming and were the first Europeans to see the Rocky Mountains.

http://en.wikipedia.org/wiki/Pierre_Gaultier_de_Varennes,_sieur_de_La_V%C3%A9rendrye

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