Mingsha is surrounded by Crescent Moon Springs. If you say Mingsha Mountain, the Crescent Moon Spring under the Shashan Mountain is even more strange. Its spring shape is like a moon, clear and clear, although there are sands on all sides, there is no water supply, but the ancient and modern times are not covered by quicksand. According to the ancient book, there is a manhole in the west of Yangguan. Its source is through the sea, the veins are connected to Kunlun Mountain, and the bottom of the water is sand. It is unfathomable. Therefore, it is not raining for a long time, and the drought is not dry. This manhole is today's Crescent Moon Spring. The spring side is rich in seven-star grass, and there is an iron-backed fish in the spring. It is said that the fish can be eaten for a long time, and the grass can cure the disease. This fish, this grass, together with the surrounding five-color sand, is also called Sambo