Silver Mines Limited announced the commencement of a new diamond drilling campaign at the Bowdens Silver Project, near the town of Mudgee in New South Wales, which will target analogues and potential intrusive sources of the Bowdens deposit. The Company has received final environmental approvals for the recommencement of exploration drilling activities at Bowdens with the program commenced on 29th January 2020. Local Orange-based drill service provider, Ophir Drilling, has been contracted to complete six holes and up to 4000 metres of diamond core drilling. The targets to be tested by drilling program are both low and high gravity responses. The low responses are interpreted to be intrusive (porphyry or intrusion-related gold [IRG] targets); the high responses are interpreted to be potential analogues to the main Bowdens silver and base metal systems. Interpretation of the gravity model suggests that the Rylstone Volcanics have formed above a crustal scale traverse fault zone. This crustal scale fault system is associated with the voluminous Rylstone volcanic units extruded from a central caldera or series of volcanic vents. The extensive gravity lows within this traverse zone are possible felsic intrusives with the potential to be a source to the mineralisation at the Bowdens Silver Deposit. Recent studies, including research and development by the Company and the University of New South Wales, identified three intrusive phases. These are spatially related to mineralisation and dating of the intrusions show close association with the previously established age of the Bowdens mineralisation. Interpretation, including geology, age dating and sulphur isotope analysis suggests that the intrusive source to mineralisation is located at depth and to the northwest and/or west of the current Bowdens Silver Deposit. The first drill hole is to be drilled from the west targeting below the Bowdens Silver Deposit to intersect a gravity low that is down dip from mineralised dacite dykes intersected in previous drilling. It is hypothesised that these dacite dykes link to the mineralisation source intrusion in this area. The hole is planned to 700 metres depth. Highlights: The drilling program will test: Extent of the Northwest very high-grade silver zone at Bowdens, which remains open to the north and west. Potential extensions to the Bundara Deeps massive sulphide discovery that includes gold and copper mineralisation. A significant gravity low immediately west of the Bowdens deposit interpreted to be the mineralisation source porphyry intrusion. Gravity responses of a similar size and magnitude to the Bowdens deposit proximal to potential intrusive sources.