Answer the following Q with stream of consciousness. Passage: The Great Plains (sometimes simply "the Plains") is the broad expanse of flat land (a plain), much of it covered in prairie, steppe, and grassland, that lies west of the Mississippi River tallgrass prairie states and east of the Rocky Mountains in the United States and Canada. It embraces

Question: Based on this passage, where are the great plains located in the united states?
The relevant information is: The Great Plains (sometimes simply "the Plains") is the broad expanse of flat land (a plain), much of it covered in prairie, steppe, and grassland, that lies west of the Mississippi River tallgrass prairie states and east of the Rocky Mountains in the United States and Canada. Therefore, the final answer is the Mississippi River tallgrass prairie states and east of the Rocky Mountains.