Detour Gold Corporation reported an initial independent mineral resource estimate for the Zone 58N gold deposit located six kilometres south of its 100% owned Detour Lake gold mine. The mineral resource estimate is comprised of an Indicated resource of 2.87 million tonnes grading 5.80 g/t for 534,300 ounces of gold and an Inferred resource of 0.97 million tonnes grading 4.35 g/t for 136,100 ounces of gold. The resource estimate for Zone 58N incorporates the assay results from 332 diamond drill holes totaling 109,700 metres. Drill spacing is approximately 25 x 25 metres in the upper 500 metres of the deposit and 40 x 40 metres below 500 metres. The mineral resource model only considers mineralized zones that are potentially mineable by underground extraction and contained within the modelled wireframes. The block model was prepared and constrained using 3D wireframes of geological domains that are associated with gold mineralization. Grade estimation was interpolated into blocks using a combination of Inverse Distance Cubed (ID3) and Nearest Neighbor (NN). The mineral resource was reported using a gold cut-off grade of 2.2 g/t and a minimum true thickness of 3 metres. The gold mineralization within Zone 58N is hosted in a swarm of tonalitic dykes that intrude mafic volcanic rocks and are spatially controlled by the margin of a large intermediate intrusion. Gold mineralization is found in quartz-tourmaline-carbonate veins containing less than 5% sulphides. The east-west mineralized system extends along a strike length of 450 metres, from surface to a depth of 800 metres. It remains open for expansion at depth. Metallurgical testing performed on a total of 31 composites has confirmed that Zone 58N mineralization is amendable for processing through the existing Detour Lake processing plant. All composites were tested for grinding, gravity separation and cyanide leaching of both gravity products (concentrate and tails). Based on these initial tests, gold recovery is estimated at 97.5% for the stated mineral resource grade.