NEW JERSEY — An unstable crater in the forest floor is just another reminder of the state's rich mining history and the many tunnels left behind and hiding just under the surface. Timothy Rack stands ...

From Europe to North America, an energy revolution is breathing new life into empty, long-forgotten coal mine shafts—by repurposing them into places to store renewable energy. Using "gravity batteries ...

Not all explorers are relegated to the pages of history books. One modern-day explorer is shedding light on some pretty dark places. Dan Lopez has spent the last 10 years exploring the dark abandoned ...

Until the passage of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) in 1980, miners across the American West extracted gold, silver, and other valuable “hardrock” ...

When an abandoned mineshaft beneath Interstate 80 in Morris County collapsed the morning after Christmas, closing the eastbound side of the highway for four days, everyone took notice. No vehicles ...

A version of this story was originally published on Jan. 17, 2025. Drivers on Interstate 80 long have grappled with gridlock, sun glare and other unavoidable headaches of traveling in a densely ...