<p>A system (10) for loading a flowable explosive into blast holes includes a mobile explosives supply unit (12) having at least one explosives feed line for feeding a flowable explosive from the supply unit (12) into a blast hole, a global positioning system (GPS) unit (14) operable to determine the position of a blast hole, and a blast hole identification processor (16) in communication with the GPS unit (14) operable to receive from the GPS unit (14) a blast hole co-ordinate position. The processor (16) is configured or programmed uniquely to identify the blast hole based on the co-ordinate position of the blast hole.</p>
