Appalachia does not stretch that far, the appalachian mountain range may be what you're thinking of.
Great Plains
The region located west of the Appalachian Mountains and east of the Great Plains is the Midwest region of the United States. This area includes states such as Ohio, Indiana, Illinois, Michigan, Wisconsin, Minnesota, Iowa, Missouri, Kansas, Nebraska, South Dakota, and North Dakota. It is known for its agriculture, manufacturing, and diverse landscapes.
Extending to the gulf of mexico
The Appalachain mountains are located west of the Coastal Plains, exteneds from eastern Canada to western Alabama.
coastal range is located along the eastern coast of the United States
coastal plain
coastal plain
The southern coastal range is located in California, running parallel to the Pacific coastline from Northern California to Southern California. It is known for its rugged terrain, diverse habitats, and scenic beauty.
Mobile.
I think its in the South...
Piedmont is a plateau region located in the eastern United States between the Atlantic Coastal Plain and the main Appalachian Mountains, stretching from New Jersey in the north to central Alabama in the south.
The Coastal Plain extends around the Gulf of Mexico in the southern United States and eastern Mexico.
No. The Piedmont is specifically a plateau region located in the eastern United States between the Atlantic Coastal Plains and the main Appalachian Mountains, stretching from New Jersey in the north to central Alabama in the south.