The 40-foot by 40-foot sinkhole closed I-80 eastbound. A sinkhole on a northern New Jersey interstate that's closed eastbound traffic for over 24 hours was caused by a collapse of abandoned ...

which opened up when an abandoned mine collapsed under the highway's right shoulder Thursday morning, according to the New Jersey Department of Transportation. The timing of when the eastbound ...

Story continues below map of abandoned mines in New Jersey. The Mount Pleasant Mine is under Route 80 All eyes recently have been on one mine in particular: Mount Pleasant Mine. Thought to be ...

The Sterling Hill Mining Museum is living history of New Jersey’s mining past. There are more than 400 abandoned mines across New Jersey. At one point, they were essential to the state economy.