During the Vietnam War, the Long Hảis were a Viet Cong base area, known as Minh Dam secret zone.
The 1st Australian Task Force whose Tactical area of responsibility was Phuoc Tuy Province mounted many operations in and around the hills forcing D445 Battalion to eventually withdraw after Operation Hammersley in February, 1970.
Today the hills are open to locals, school children, and tourists.
Visitors can climb the hills and see the bunkers, tunnels, and ruins of the Vietcong stronghold.
Two-thirds of the way up is a temple with a memorial that lists the names of all the Vietcong soldiers who died in battle.