The Las Vegas Valley is a large, arid basin located in southern Nevada. It is surrounded by mountain ranges and is primarily known for the city of Las Vegas, which serves as the valley's cultural and economic hub. The valley covers approximately 600 square miles and has a population of over 2 million people, making it one of the fastest-growing metropolitan areas in the United States. The valley's climate is classified as a desert, characterized by hot summers and mild winters. It receives very little rainfall, averaging about 4 inches annually. The Las Vegas Valley is also home to several recreational areas, including Red Rock Canyon and Lake Mead, which offer outdoor activities and natural beauty to residents and visitors alike.