There's a lot of wierd shit in Chinese deserts

That is a pool that is 10 miles long and 5 miles wide. Look at google maps for a sense of scale: http://maps.google.com/maps?q=40.452107,90.85693359375&ll=40.445379,90.814362&spn=0.357427,0.705185&t=h&z=11&vpsrc=6.

One hell of a cement pond. 5x10 miles.