$DSCR Once underground access is gained it would be preferable if a 3D drone assisted LIDAR survey be conducted to generate the best possible map of the underground workings - define where stopes have been back filled -sample the back fill and produce a more accurate plan of the auriferous channel ways. Underground workings data Figure 9 illustrates a low-resolution image presented by Clifton of the workings and access tunnels between the Big Bend and the Lawry shaft. This also illustrates why the seismic data could be extremely useful in clarifying the layout of the mine, what has been mined, what remains unmined and whether other channels remain to be located and tested.