When was Pine County, Minnesota formed?
Pine County, Minnesota
Pine County was organized on March 1, 1856, with Chisago County being its primary parent county. Other portions of the original Pine County originated from Ramsey County. The original county seat was Chengwatana.
Crow Wing County, Minnesota
This area was long occupied by the Ojibwe people, known as Chippewa in the United States. In addition, numerous Dakota people lived in central and southern Minnesota before European settlement. 
Crow Wing County was established by European Americans on May 23, 1857 and formally organized March 3, 1870. It is named for the Crow Wing River, which is itself named for an island in the river that resembles a crow's wing. 