Hans Christensen, DF-21C Missile Deploys to Central China. Federation of American Scientists, Sept. 28, 2010 (blog).
http://www.fas.org/blog/ssp/2010/09/df21c.php
Note:
(a) "GeoEye is a commercial satellite imagery company based in Dulles, Virginia that is the world's largest space imaging corporation."
http://en.wikipedia.org/wiki/GeoEye
(b) Delingha 德令哈, capital of Haixi Mongol and Tibetan Autonomous Prefecture 海西蒙古族藏族自治州 in Qinghai province.
海西 due to west of the Qinghai Lake. Delingha is Mongolian meaning 广阔的原野.