What causes sinkholes? Traffic nightmares worsen as new sinkhole opened on Rt 80 - shutting down traffic in both directions.

Investigators believe she was swallowed by a sinkhole, falling at least ... According to a map available on the Pennsylvania Department of Environmental Protection’s Mine Map Atlas, crews ...

Three days after a Pennsylvania woman searching for her cat disappeared at the chasm of a three-story deep sinkhole ... relieved by fresh replacements. Maps nearly a century old were consulted ...