Great Northern Minerals Limited announced the receipt of assay results from the remaining six Reverse Circulation (RC) drill holes at the Company's Big Rush Gold Project in Northern Queensland. Best intersections, calculated at nominal 1 g/t cutoff. A total of 8 RC drill holes for 1,042 metres were completed at the project in early December 2019. All holes tested mineralisation beneath the historical Central Pit workings along 200m of strike length, notionally, 75m below original surface and up to 60m below the pit floor. Samples were collected for each metre and split through a rig-mounted cone splitter with 10% of each sample (approximately 2.5-3kg) collected in a calico sample bag for assay and bulk samples stored on site in plastic bags. Gold assays were all by fire assay. Only very minor water was encountered and all samples were dry and of even volume. The objective of the programme was to validate previous drilling results to enable a maiden JORC-compliant resource to be calculated. Analyses have confirmed the width and grade of historic drill intersections and resource estimation work has commenced. Big Rush "Orogenic-Style" gold mineralisation is concentrated along a discrete, steeply dipping, NE-trending structurally complex zone that cuts highly deformed sedimentary rocks. In the immediate orebody environs, host rocks include a high proportion of variably graphitic black shale and siltstone. Gold mineralisation along the structure is intimately associated with multi-phase quartz veining and correlates strongly with quartz vein intensity and, in highly chlorite-altered host sediments, sulphide content, notably pyrite and arsenopyrite. During the 1990's, four open pits were developed along 2.2km of the Big Rush structure to extract oxide ore for heap leaching. From south to north, these were the Sergei, Southern, Central and Northern pits. The Central pit was mined up until 1998. Outside of the Central pit there has been no drilling since 1997. The potential to outline further mineralisation is obvious and, at the Central Pit, mineralisation remains open along strike and at depth. The high grade zones within the Big Ru h system, and grade variability, are consistent with a high degree of structural control. Detailed infill and step-out drilling will be required at Big Rush to unlock its potential.