The Maowusu Desert is one of the four major sandy areas in China. It is located between Yulin, Shaanxi Province and Ordos City, Inner Mongolia Autonomous Region, with an area of 42,200 square kilometers. It is located at 37°27.5′-39°22.5′ north latitude and 107°20′-111°30′ east longitude. It includes the southern part of Ordos in Inner Mongolia Autonomous Region, the northern sandy area of Yulin City, Shaanxi Province, and the northeastern part of Yanchi County, Ningxia Hui Autonomous Region. It has a lot of precipitation, which is conducive to plant growth. It was originally a relatively developed animal husbandry area, with a large area of fixed and semi-fixed sand dunes. The Great Wall passes through the southern edge of the desert from east to west.