The roads in the Gurbantonggut desert do not need to be planted with grass like the Tarim Highway. In the Chemürchek meteorite group, many meteorites are scattered among the ancient tombs of Chemürche, and there are many black boulders with various patterns carved by ancient ethnic groups. Where did these boulders come from in this desolate field? It turns out that these boulders came from this pile of aliens: Xinjiang Dajianshi. About 5 kilometers west of Chemulchek Township, Altai City, there is a pile of small hills made of more than 100 meteorite blocks, about 3 meters high, scattered in scale 39 meters long, north and south wide 11.3 meters. The stones are gray and black, dense and solid, and the stone surface makes a sputum metal sound. Because the sound frequency of the stones is different when they are struck, the pile of stones is called "singing stones". Some of the stones have white pits on the outside due to long periods of knocking.