How drones are changing the art of mineral surveying
· Together BHP Mitsubishi Alliance (BMA) and BHP Mitsui Coal (BMC) have seven coal mines in the Bowen Basin in Central Queensland, operating as Queensland Coal, with a resource of billion tonnes of highgrade hard coking coal. Mineral surveillance drones can help build 3D maps of these mine sites, allowing BHP to constantly monitor the mines' progress and safety. They will also .