What geographic features have influenced where people live in the West America?

In Western America, geographic features like the Rocky Mountains, Sierra Nevada, and coastal ranges have significantly influenced settlement patterns. The mountains create barriers that affect climate and accessibility, leading to population concentrations in valleys and coastal areas with milder climates. Additionally, the availability of water sources, such as rivers and lakes, has shaped agricultural development and urban growth. The proximity to the Pacific Ocean also facilitates trade and economic opportunities, attracting populations to coastal cities.