The contiguous United States (called conus by US military personnel) or the "Lower 48" (the 48 states other than Alaska and Hawaii) is bounded by the Atlantic Ocean to the east and the Pacific Ocean to the west, with much of the population living on the two coasts.
They are the oldest of the three mountain ranges, are covered with a diversity of Subtropical and Temperate flora and fauna, a thick canopy of dense vegetation, and offer spectacular sightseeing and excellent camping spots.
The loess lands of the southern Mid-West and the Limestone cliffs and mountains of the south add beauty to the region, with lush vegetation coating the surfaces of cliff faces that border rivers, and mist shrouding beautiful green mountains and gorges.
The Rockies are, on average, the highest in North America, extending from Alaska to New Mexico, with many areas protected as national parks.
They offer hiking, camping, skiing, and sightseeing opportunities, as well as desert and subtropical getaways in the southern lowlands of the region.
The United States of America is a large country in North America, often referred to as the "USA", the "US", the "United States", "America", or simply "the States".
Home to the world's third-largest population, with over 318 million people, it includes both densely populated cities with sprawling suburbs and vast, uninhabited natural areas.With its history of mass immigration dating from the 17th century, it is a "melting pot" of cultures from around the world and plays a dominant role in the world's cultural landscape.It's famous for its wide array of popular tourist destinations, ranging from the skyscrapers of Manhattan and Chicago, to the natural wonders of Yellowstone and Alaska, to the warm, sunny beaches of Florida, Hawaii and Southern California.The United States is not the America of television and the movies.It is large, complex, and diverse, with several distinct regional identities.Due to the vast distances involved, travelling between regions often means crossing through many different landscapes, climates, and even time zones.