When the U.S. Congress passed the Homestead Act
in 1862, this brought a flood of emigrants into the Badlands
of South Dakota
, where they could purchase 160 acres for a token payment of about $18. As the push for western expansion continued, the Sioux
retaliated more and more against the many settlers encroaching upon their lands, ultimately culminating with the Fort Laramie Treaty
of 1868. Photo by Carol Highsmith, 2009.