This location and area was important because it was suspected that the NVA was using route designated as route 548 for supply and troop movement from Laos into Southern-Vietnam. The Hill overlooked the surrounding A Shau valley at an altitude of 937 meters, hence the name Hill 937. The vegetation in the area is thick and heavily restricts movement. The valley is characterized as a 3-cannopy jungle with dense brush. Along the ridge line approaching Hill 937 is steep cliffs and sharp inclines. The NVA took to this to their advantage by setting up concentric rows of heavily fortified bunkers down the hill. The weather was characterized by afternoon thunderstorms which halted American air