The Cannington mine is an underground silver-lead-zinc operation located in North-West Queensland, which has been in production since 1997. The ore is extracted using the longhole open stoping method. Backfilling usually incorporates paste to confine voids with a specific strength to facilitate adjacent stoping. The intent of this approach is to achieve ‘full extraction’ of the orebody, minimising the incorporation of rock pillars in the mine design. Feasibility studies for Cannington recognised that the mine could be prone to surface subsidence given the synclinal geometry and moderate depth of the orebody. The potential for occasional but severe flooding of the Trepell and Hamilton creeks required that underground mining should not significantly disturb the surface. Avoiding disturbance to key underground infrastructure including the decline and the rock hoisting shaft was also critical. To achieve this objective the proposed mining method involved open stoping with paste fill. A systematic layout of regional pillars was proposed to further reduce the potential for settlement, or at least delay it until late in the mine life (Struthers, Lee and Bailey, 1994). As Cannington enters the final phase of mine operations; understanding the historical response to mining is key to forecasting the surface response to the removal of the remaining pillars. As Cannington enters the final phase of mine operations, this hypothesis is being tested. Measured changes on surface infrastructure which were focused on the shaft provided the first indication of subsidence on the surface, however the location and scale of the subsidence went largely un-noticed until InSAR technology was introduced to monitor the site’s tailings storage facility. The path to understand the scale and scope of mine subsidence has been a complex process that has evolved over several years. A combination of newer technologies and traditional methods has been employed to measure, correlate, and forecast movement. The outcome is a site-wide awareness of the phenomenon, with stability safety cases developed to manage the risk of mine scale instability.