The city is situated among the foothills of the Appalachian Mountains. It is west of the foothills of the Atlas Mountains. It is especially prevalent in geologic basins encircled by hills or mountains. They are rare in foothills and low mountains. Some neighborhoods are in the foothills of the Santa Monica Mountains. Prevent the people from crossing the Rocky Mountains? The region's geology developed from river deposits formed from the erosion of the Rocky Mountains. Major rivers flowing from the Rocky Mountains offer hydroelectric power resources. Armenia lies in the highlands surrounding the mountains of Ararat. These ranges are the location of forests reminiscent of Southern California's San Gabriel Mountains. They are part of the Blue Ridge Province of the Southern Appalachian Mountains. Much of the Western mountains have an alpine climate. Many rivers originate in the Ural Mountains. It lies northwest of the Pocono Mountains. The main language of the Rocky Mountains is English.