Final answer:
The Appalachian Mountains are located in the eastern part of the United States and encompass a range from Newfoundland in Canada to central Alabama. They form a significant landscape feature influencing the region's history, development, and biodiversity.
Step-by-step explanation:
The Appalachian Mountains are located in the eastern United States. They are not found in or around the Great Plains or the Mississippi Delta.
The Appalachian Mountains are an extensive mountain system that represents one of the oldest ranges in North America. Over time, they have been eroded down to rolling hills that extend across the Southeastern United States, including within the Great Smoky Mountains National Park. The mountain range is much less rugged than the Rockies, yet its formation and presence have greatly influenced the history and development of the United States. The mountains stretch from Newfoundland in Canada down to central Alabama in the United States, shaping the landscape and climate of the regions they traverse. They are associated with the building of various physiographic provinces and play a significant role in the biodiversity and ecology of the region, including the concentration of species such as salamanders.
The Appalachian Highlands form a crucial part of the American South and are characterized by various physiographic provinces like the Valley and Ridge and the Blue Ridge provinces.