Where colonists settled except?

Colonists primarily settled in areas along the eastern coast of what is now the United States, including regions such as New England, the Mid-Atlantic, and the Southern Colonies. However, they largely avoided the arid deserts of the Southwest and the mountainous regions of the Appalachian Mountains initially due to their challenging terrain and harsh climates. Additionally, the vast interior regions, such as the Great Plains, were not settled until later due to the lack of immediate resources and conflicts with Native American tribes.