 However , the peace and freedom of the Native Americans did not last for long . The Great Sioux War of 1876 – 77 was sparked when American miners discovered gold in the Black Hills of western South Dakota and eastern Wyoming . These lands were originally set aside for Native American use by the Treaty of Fort Laramie . When the settlers intruded onto the lands , they were attacked by Native Americans . U.S. troops were sent to the area to protect the miners , and drive out the natives from the new settlements . During this bloody period , both the Native Americans and the U.S. military won victories in major battles , resulting in the loss of nearly a thousand lives . The war eventually ended in an American victory , and the Black Hills were opened to settlement . Native Americans of that region were relocated to reservations in Wyoming and southeastern Montana . 
 However , the peace and freedom of the Native Americans did not last for long . The Great Sioux War of 1876 – 77 was sparked when American miners discovered gold in the Black Hills of western South Dakota and eastern Wyoming . These lands <a href='uninflect' title='1'><mark>were</mark></a> originally set aside for Native American use by the Treaty of Fort Laramie . When the settlers intruded onto the lands , they <a href='uninflect' title='2'><mark>were</mark></a> attacked by Native Americans . U.S. troops <a href='uninflect' title='3'><mark>were</mark></a> sent to the area to protect the miners , and drive out the natives from the new settlements . During this bloody period , both the Native Americans and the U.S. military won victories in major battles , resulting in the loss of nearly a thousand lives . The war eventually ended in an American victory , and the Black Hills <a href='uninflect' title='4'><mark>were</mark></a> opened to settlement . Native Americans of that region <a href='uninflect' title='5'><mark>were</mark></a> relocated to reservations in Wyoming and southeastern Montana . 
However , the peace and freedom of the Native Americans did not last fa long . The Great Sioux War of 1876 – 77 was sparked when American miners discovered gold in the Black Hills of western South Dakota and eastern Wyoming . dem lands was originally set aside ffirNative American use by the Treaty of Fort Laramie . When da settlers intruded onto the lands , they was attacked by Native Americans . U.S. troops was sent to tdaarea to protect the miners , and drive outt thdaatives from thedaw settlements . durin dis bloody period , both the Native Americans and the da. military won victories in major battles , resulting in the loss of nearly a thousand lives . The war eventually ended in an American victory , and the Black Hills was opened to settlement . Native Americans of that region was relocated to reservations in Wyoming and southeastern Montana .