Chinese rescue workers carry wooden boards to create a passable route through soft mud after a mudslide swept into the town of Zhouqu in Gannan prefecture of northwestern China's Gansu province, Tuesday, Aug. 10, 2010. (AP Photo/Ng Han Guan)

Photo by: Ng Han Guan

Chinese rescue workers carry wooden boards to create a passable route through soft mud after a mudslide swept into the town of Zhouqu in Gannan prefecture of northwestern China's Gansu province, Tuesday, Aug. 10, 2010. (AP Photo/Ng Han Guan)