Contact Info
Missouri River Institute
The University of
South Dakota
414 E. Clark Street
Science Center
Vermillion, SD 57069

Financial support for website development provided by the
Living River Group
of the
Sierra Club




Site Description:

Settlers began moving west during the mid-1800s into areas that were largely inhabited by Native American Tribes. Leaders of the Yankton Sioux Tribe in southeast South Dakota traveled to Washington D.C. to establish a treaty that would open 11 million acres of land to non-Indian settlement and would also reserve land for the Yankton-Sioux Tribe north of the Missouri River in current Charles Mix County. A monument was established near Greenwood, SD in honor of those who signed the Yankton Sioux Treaty of 1858.

Web Link