This is a very interesting site with lots happening. There are 2 weird looking patterns which are supposed to be spy satellite calibration sites. There is 3 mock airfield on different sizes, shape and this square where you can see numerous impacts from warheads and sub-munitions.
Also to the west, there is LOP NOR, which is China nuke test range. To the east, you will find the 404 Plutonium Facility. To the south, you have a quite expansive ICBM range of DAQAIDAM/MAHAI. Plenty of interesting stuff.