While other maps on the website show where and when the Kanza lived during various periods (as a result of Treaties), this animated map highlights Kanza land loss from treaties with the U.S. government and a unilateral Act of the U.S. Congress that expelled them from the state that bears their name. 

• The map begins with the ancestral homelands of the Kanza (primarily in the modern-day states of Kansas, Missouri, Nebraska). 
• The Treaty of 1825 involved the largest U.S. acquisition of Kanza land. Beginning in 1825, the Kanza were confined to a wide (east-to-west) rectangular reservation that spanned much of what became the state of Kansas.
• The U.S. acquired all of the Kanza reservation land in the Treaty of 1846. As a result of that treaty, the Kanza were forced to a much smaller rectangular reservation further southeast that included what became the town of Council Grove. 
• The U.S. further reduced this reservation in the Treaties of 1859 and 1862, removing Council Grove and surrounding areas (east and west) from Kanza possession and confined the Kanza to an even smaller rectangular reservation just south of the town. 

• In 1872, Congress passed an act that forced the Kanza to leave the state of Kansas and confined them to a reservation in what is now Oklahoma. The Kanza walked to this reservation in 1873. 

   

_{Created by Shawn Hutchinson and Geographic Information Systems Spatial Analysis Laboratory (GISSAL) at Kansas State University}