http://www.mongoliaonline.com/Environment/why-the-mongolian-%E2%80%98ninjas%E2%80%99-keep-on-digging/ Gold production in Mongolia is growing rapidly and it saw a seventeen-fold increase between 1991 and 2001. But the real boost came in July 2001, when a Canadian company called Ivanhoe Mines found a large gold and copper deposit at Oyu Tolgoi  (turquoise hill). Foreign investment in the country on explorations soared. And the great Mongolian gold rush began with mining companies from around... Thu, 26 Aug 2010 23:36:33 EDT en