In Pierre Bottineau's day, it was the location of rivers,
forests and grasslands – not survey lines – that
defined meaningful boundaries. In what is now western Minnesota,
the dense forest land that stretched unbroken from the east
coast gave way to prairie, marking a major divide. The U.S.
border with Canada was straddled by a migratory culture of
trade among Indians and whites that moved on the waterways
and overland by ox cart. Before statehood in 1858, the Minnesota
Territory extended west to the Missouri River, thus including
parts of present-day North and South Dakota. Ultimately, the
Red River of the North, which flows into Canada, determined
Minnesota's western edge.
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