i was in b co.589th engr.we had a troop with us on ql1 across from the beach 1969-1970 i was a dozer operator and spent alot of time with i think it was c troop on the road between song mau and phan thiet anyone remember.one time we had to move a tank m60 that hit a mine made from one of are 500lb duds blocked ql1 there were rice pattys on both sides my dozer had a work out that day.