Royal Australian Air Force 211 Radar Station

RAAF 211 Radar Station at Charlie’s Hill became operational in late 1943, and was one of five British-designed Advanced Chain Overseas (ACO) radar stations constructed in Queensland during World War II: four being completed (Benowa, Toorbul, Bones Knob and Charlie’s Hill) with a fifth not completed (Paluma). The site is located in a reserve about 1.5 km along Charlie’s Hill Road, east of the Bruce Highway, about 5km south of Home Hill.

Two reinforced concrete semi-circular igloos, both about 10m long by 6m wide, are located over 50m apart at the summit of Charlies' Hill. Each has a small concrete tower at the north end.

The eastern (receiving) igloo has a square steel box on top of its tower. Four concrete footings (approximately 1.5m by 1.5m each) for a timber tower are located approximately 10m northeast of the igloo. Northeast of the footings is a chest height, concrete lined hole, reputedly a Voluntary Air Observers’ Corps (VAOC) spotters post.

The western (transmitting) igloo has exit holes for the aerial cables in the concrete floor. To the southwest of the igloo are four concrete footings for a timber tower. Located in the middle of the tower foundations is another concrete lined hole.