A Mig-26 helicopter swings an excavator to the barrier lake in Tangjiashan, Beichuan County, southwest China's Sichuan Province, May 26, 2008. Machinery has been carried from Leigu to Tangjiashan by air and the operation on dynamiting the dam of the barrier lake is speeded up.

A Mig-26 helicopter carries an excavator to the barrier lake in Tangjiashan, Beichuan County, southwest China's Sichuan Province, May 26, 2008. A Mig-26 helicopter has carried machinery from Leigu to Tangjiashan by air and the operation on dynamiting the dam of the barrier lake is speeded up.