The groundwater level in the Taklamakan Desert in Xinjiang is generally not less than 10 meters below the surface between the mounds, and it is convenient to drill a well to take it.

The Taklamakan Desert is located in the middle of the basin, surrounded by rivers flowing into the basin, disappeared in the diffuse yellow sand, converging under the desert to form a vast underground ocean.

Now detected data, the total amount of water under the Taklamakan Desert is more than 8 trillion tons, most of the areas down to the water table line is not more than 10 m. If the sand and groundwater exchange, the water runs to the sand above, that is a deep 24 m, the square garden of 327,000km2 of freshwater ocean, enough to make the 3 Jiangsu Province or 19 Beijing City into an aquarium.