In 1981 , Dongducheon City was established , encompassing Yangju county .
In 1963 , its status was raised to that of a township , Tongducheon ( eup ) .
In 1981 , Tongducheon   was established , encompassing Yangju county .
In 1963 , its status was raised to that of a township , Tongducheon ( eup ) .