Autumn brings golden leaves of birch trees, seemingly extraordinary splendid against the snow of Tianshan mountains and displaying the best autumn colors, in Balikun of Hami prefecture, northwestern China's Xinjiang Uygur autonomous region, Sept. 21, 2015. In recent years, the county of Balikun has been aiming at ecological tourism, attracting numerous visitors from every corner of the country with its astonishing views.