The entire Mississippi River watershed, except the Red River of the North whose waters ultimately reach Hudson Bay, and the Great Lakes which ultimately drain out through the St. Lawrence River and seaway to the Atlantic Ocean. (The Louisiana Purchase territories.)
the coastal plains
The GREAT PLAINS is a dry, treeless region that lies between the Mississippi River and the Rocky Mountains.
the coastal plains
the great plains
The Great Plains.
The Great Plains is the huge expanse of flatlands from the Rocky Mountains eastward to the Mississippi River.
The Great Plains, the Mississippi River system, and the eastern woodlands all lie between the Rocky Mountains and the Appalachian Mountains.
the great plains
The rocky mountains lie in the middle of the country.
The Great Plains is the huge expanse of flatlands from the Rocky Mountains eastward to the Mississippi River.
the rocky mountains
Between the Rocky Mountains and the Appalachian Mountains lies the Great Plains, a vast expanse of flatlands characterized by grasslands and prairies. This region stretches across several states in the central United States and serves as a transition zone between the rugged mountain ranges. Additionally, the area includes parts of the Midwest and is known for its agricultural productivity.