n June 2006, satellite imagery on the Google Earth service revealed a 1:500[20] scale terrain model [1] of eastern Aksai Chin and adjacent Tibet, built near the town of Huangyangtan, about 35 kilometres (22 mi) southwest of Yinchuan, the capital of the autonomous region of Ningxia in China.[21] A visual side-by-side comparison shows a very detailed duplication of Aksai Chin in the camp.[22] The 900 m × 700 m (3,000 ft × 2,300 ft)[citation needed] model was surrounded by a substantial facility, with rows of red-roofed buildings, scores of olive-