It looked to touch down from the Shoalwater Bay Training Area (SWBTA) and was heard to be using the radio callsign of "Chainsaw 11".
It looked like the Chinook completed a medical evacuation flight with it met by an Ambulance while on the ground at Camp Rocky.
A15-304 then popped across the Rockhampton Airport to refuel before it returned to Shoalwater Bay.
The Chinook is flown by the Army's 5th Aviation Regiment (C Squadron) based at Townsville.
Sincere thanks to the local plane spotters for taking the time to capture and send through these great photos!
Photos taken by Scott Harris, 'IAD' and Steve Vit ©