Strong tides carrying sands are seen during the sand-washing operation of the Yellow River at the Xiaolangdi Reservoir, central China's Henan Province, July 5, 2011. The reservoir started to clear out silt depositing at the dam at 6 p.m. Monday. The sand-washing operation of the Yellow River this year started on June 19. (Xinhua/Miao Qiunao)
Strong tides carrying sands are seen during the sand-washing operation of the Yellow River at the Xiaolangdi Reservoir, central China's Henan Province, July 5, 2011. The reservoir started to clear out silt depositing at the dam at 6 p.m. Monday. The sand-washing operation of the Yellow River this year started on June 19. (Xinhua/Miao Qiunao)
Strong tides carrying sands are seen during the sand-washing operation of the Yellow River at the Xiaolangdi Reservoir, central China's Henan Province, July 5, 2011. The reservoir started to clear out silt depositing at the dam at 6 p.m. Monday. The sand-washing operation of the Yellow River this year started on June 19. (Xinhua/Miao Qiunao)
