BUTTE (KPAX) A sinkhole opened up in the middle of East Broadway Street in Uptown Butte earlier this week. The county has ...

Repurposing old mine shafts into gravity batteries is more than just a clever use of existing infrastructure—it's a promising ...

Repurposing old mine shafts into gravity batteries is more than just a clever use of existing infrastructure—it’s a promising new model for energy storage that combines modern technology with ...

At the bottom of a long-abandoned mine, 50 metres below the surface, one company searches for rare Welsh gold, attracted by ...