A sinkhole is a depression in the surface because the underlying rock has collapsed. They can be saucer-shaped or appear ...

There are more than 400 abandoned mines across New Jersey. At one point, they were essential to the state economy.

Structural problems on Route 80 in Morris County, where multiple sinkholes have been discovered in recent months, date back ...

Abandoned mineshafts have caused the repeated sinkholes along I-80 in Wharton. In Ogdensburg, visitors can see what it once looked like underground ... and we have to do it in an environmentally ...