Underground voids from abandoned mines pose danger to people and property when land collapses

Payne Institute Faculty Fellow Paul Santi contributes to this article about how swaths of Pennsylvania and many other states are honeycombed with old, unstable mines that can cause the earth to suddenly give way and threaten people and property.  That’s what searchers in Westmoreland County, just southeast of Pittsburgh, fear led to the disappearance of 64-year-old Elizabeth Pollard. Pollard and a young granddaughter were looking for a lost cat when she went missing Monday evening. December 3, 2024.