In June 2006, satellite imagery on the Google Earth service revealed a 1:500 scale terrain model https://maps.google.com/maps?f=q&hl=en&q=yinchuan,+china&ie=UTF8&t=k&om=1&ll=38.26568,105.953865&spn=0.014489,0.042915 of eastern Aksai Chin and adjacent Tibet, built near the town of Huangyangtan, about 35 kilometers southwest of Yinchuan, the capital of the autonomous region of Ningxia in China.