Leap in April ninth day (Saigon), May 31, 1982, Young Uni-foot expedition to the Yellow River.

1982, 31, 2009, our geologists Young Uni Yellow River full study completed on foot to reach the Yellow River estuary. Trekking expedition to the Yellow River from the Yellow River birthplace the Young Uni is starting from July 21, 1981, lasted 315 days, over 5500 km journey, after seven provinces, two autonomous regions, 108 counties to collect a large number of first Yellow River hand information. Our study completed on foot the whole of the Yellow River in ancient first person.