September 12, 2010
Mine Safety and Health Administration - Upper Big Branch Mine-South Single Source Page
"We are providing you with this single source page of information and resources regarding the Upper Big Branch Mine explosion which occurred on April 5, 2010. We will be adding material to this page as it becomes available. New additions will be noted and an indication that the page was updated will be posted on MSHA's home page as well. This Page Last Updated: 09/09/2010."