Dakota Territory was the name of the northernmost part of the Louisiana Purchase
of the United States from 1861 to 1889. It became an historic, organized territory
on March 2, 1861. Upon creation, the territory of Dakota Territory included much
of present-day Montana and Wyoming; by 1868, creation of new territories reduced
Dakota Territory to the present boundaries of the Dakotas.
"Dakota Territory Riders" is in reference to
those who ride in and about this historic geographical location."
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