Lantian County (Chinese:蓝田县,pinyin:Lántián Xiàn) is a county ofXi'an,Shaanxi,China. It is in the southeast part of Xi'an.Qinling Mountains is south of it. It covers 2,005.95 square kilometres (774.50 sq mi). As of November 2010, 514,026 people lived there.[1] It is famous for Lantianjade. Its main work isagriculture andtourism.