Uyuni is a city in the southwest of Bolivia. Uyuni primarily serves as a gateway for tourists visiting the world's largest salt flats, the nearby Salar de Uyuni. Each year the city receives approximately 60,000 visitors from around the globe. The city also acts as a gateway for commerce and traffic crossing into and out of Bolivia from and to Chile, and there is a customs and immigration post downtown. Agriculture in the area is generally limited to quinoa, llamas, and sheep.