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Map of Minnesota Counties.

A colored map of the state's 87 counties appears here. ...

U. S. Territorial Maps: 1775 - 1920.

These are maps of the states and territories of the United States from 1775 to 1920.

Minnesota Territory was formed March 3, 1849. It was admitted to the Union on May 11, 1858, and its government took office on May 24, 1858. ...