U.S. army general who lost the Battle of Little Bighorn

Plains Indians named for their black moccasins

Plains Indians who formed a confederacy and spread all across the northern plains; name means "friends" or "allies"

name given to the Dakota meaning "snakes in the grass"

Plains Indians once skilled in pottery making and cloth weaving

the chief river of North America and the largest river in the U.S.

source of the Mississippi River

world's largest gulf

largest island of the West Indies

an important Atlantic current whose source is the Gulf of Mexico

is a plain or hilly region within the temperate zone that is covered by grass.

dry plants that break from their roots and roll across the plains.

lives in vast underground "towns" that stretched endlessly over the prairies.

2,000-foot mountians west of the Mississippi and Arkansas

The Sioux Indians call the 3,000-foot mountain range in western South Dakota and eastern Wyoming what?