That would be the good ol' rocky mountains
The Rocky Mountains lie just west of the Great Plains. They stretch from Canada down to New Mexico and are known for their rugged terrain and diverse ecosystems. The Rocky Mountains act as a natural barrier between the Great Plains and the western states.
Rocky Mountains --->Great Plains--->Mississippi River---> Appalachian Mountains
The Rocky mountains.
The Great Plains are located to the west of the Interior Lowlands and east of the Rocky Mountains.
Mississippi river to the east and the rocky mountains to the west
Some mountains around the Great Plains include the Rocky Mountains to the west, the Black Hills in South Dakota, and the Ozark Mountains in Missouri and Arkansas. These mountain ranges border the Great Plains and provide a stark contrast to the otherwise flat landscape.
mississippi river to the east and the rocky mountains to the west
The Great Plains is located east of the Rocky Mountains and west of the Mississippi River. It can be described as a flat prairie.
Great Plains
Low lands
The Great Plains
Low lands