Map image showing British North America. 1850 boundaries are shown on the map. The map shows lands ceded by Native Americans by 1850 and 1870. Lands ceded by 1850 included lands in Michigan, Iowa, Illinois, Indiana, Iowa, Wisconsin, Florida, Georgia, Alabama, Mississippi, and Indian Territory. The map shows that lands ceded by 1870 included lands in Oregon Territory, California, Utah Territory Unorganized Territory, Texas, New Mexico Territory, Minnesota Territory, and Indian Territory. Indian territory is designated as an area that extends from the northern border of Texas northward to the Minnesota Territory and runs westward from the borders of Arkansas, Missouri, and Iowa to the Utah Territory. © 2012 The Exploration Company Which government intervention would most likely cause problems for inhabitants of the region marked 'Indian Territory"? Homestead Act Battle of Sand Creek Bureau of Indian Affairs Dawes Act