Only one bunker remains of the US Marine Corps base that used to cover the three small hills here. In September 1967 Con Thien was besieged by the NVA, provoking a US response of 4000 bombing sorties. Today the region (though cleared of mines) is still studded with unexploded ordnance – stick to the paths. Con Thien Firebase is 15km west of Hwy 1 and 8km south of Truong Son National Cemetery.
