There are about 500,000 abandoned mines in the United States, according to the Mine Safety and Health Administration, and these long-forgotten facilities can pose a variety of risks to people ...

Now a new and perhaps even more vexing concern has emerged: Highway sinkholes stemming from long-abandoned mines. Three sinkholes have opened up along I-80 in Wharton since late December.

Nevada is home to more than 300,000 abandoned mines — mines that can kill you in an almost unimaginable number of ways. But those mines from Nevada’s olden days are attracting a modern-day ...

But the old mines also left behind a legacy of trouble for today’s Westerners. Abandoned mines dot the Western landscape, polluting the region’s streams with acid mine drainage and connecting the ...

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The soil instability near the interchange with Route 15 is blamed on abandoned mines beneath the highway that are slowly collapsing. The New Jersey Department of Transportation has been shoring up ...