In 1804, in present-day South Dakota, Lewis and Clark met with three tribes living along the Missouri River. The talks had varying degrees of success, and as they left, one chief promised, "We shall look at the river with impatience for your return." But years later tension between the native people of the Great Plains and increasing numbers of white European settlers exacerbated by broken treaties, shrinking reservations, and a gold rush in the Black Hills inevitably resulted in violent resistance (1854-1890.)
