Ulan Lake, whose name literally means "red lake" in Mongolian, is a stunning salt lake situated in the heart of the Tengger Desert in Alxa League, Inner Mongolia. Known for its striking red color, the lake is formed by a combination of smaller salt lakes. This vibrant, rose-like hue is due to the presence of certain organisms in the lake. During the hot summer months, the lake's red color becomes even more intense due to high temperatures, high salinity, and abundant sunlight, creating a mesmerizing spectacle set against the backdrop of the desert landscape.