CORONA satellite photograph over Kok Tepa, the most important archaeological site of an ancient city in the region except for Samarkand. Through stereoscopic view, we can identify 'the acropolis (upper city)' in the southern part of the site. We can find two canals crossing the site.

CORONA satellite photographs are available from U. S. Geological Survey, EROS Data Center, Sioux Falls, SD, USA.