The Port Royal #2 mine disaster, June 10, 1901. A look at Westmoreland County's forgotten mine disaster that occurred in Rostraver Township on June 10, 1901. On the anniversary date June 10, the Rostraver Township Historical Society will proudly present the Port Royal #2 Mine Disaster story that took place on this date 123 years ago. See why this disaster was waiting to happen in one of Pittsburgh Coal's most dangerous mines along the Youghiogheny River and what took place after the disaster. Learn what it was like to be a miner in Pennsylvania in 1901. Presented by John Hepple.