Kemess Mine Underground http://www.northgateminerals.com/Theme/Northgate/files/media/PDF/Northern%20Miner%20-%20Northgate%20eyes%20underground%20potential%20of%20Kemess%20North%20Jan%202011.pdf Northgate Minerals Announces Updated Resource Estimate for Kemess Underground http://finance.yahoo.com/news/Northgate-Minerals-Announces-cnw-3948839431.html?x=0&.v=1 stockcharts.com/c-sc/sc?s=nxg&p=D&yr=0&mn=3&dy=15&i=p47868087965&a=173461334&r=537