Landslides of w:st="on">w:st="on">Hanlingou w:st="on">River Basin grew well in the different periods during the Epipleistocene and their characteristics present as being on a large scale and in large quantity. It gives several typical examples to study the development of landslides of the middle reach of the w:st="on">w:st="on">Bailongjiang w:st="on">River in Wudu. The results also show that the water resources from Hanlingou were cut off to form barrier lakes by earthquake and many old trees were buried. According to the v w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="14" UnitName="C">¹⁴Cv> dating from the root of a tree, the ancient landslides grew about 42.0~44.8 ka B.P..