The Sac and Fox Reservation of the Sac and Fox Nation is a 23.639 sq mi (61.226 km²) tract located in southeastern Richardson County, Nebraska, and northeastern Brown County, Kansas near White Cloud, Kansas. It was created as a consequence of the Platte Purchase of 1836.
Map of Sac and Fox Nation Reservation, Jefferson, NE, USA
References
Sac and Fox Reservation Wikipedia(Text) CC BY-SA