MAP ACTIVITYMap 17.1 The Loss of Indian Lands, 1850–1890 By 1890, western Indians were isolated on small, scattered reservations. Native Americans had struggled to retain their land in major battles, from the Great Sioux Uprising in Minnesota in 1862 to the massacre at Wounded Knee, South Dakota, in 1890.READING THE MAP: Where was the largest reservation located in 1890? Which states on this map show no reservations in 1890? Compare this map to Map 17.3.CONNECTIONS: Why did the federal government force Native Americans onto reservations? What developments prompted these changes?