An incident at a former Colorado gold mine that killed a man and trapped a group of tourists for hours underground in 2024 was caused by "operator error," authorities said. Investigators ...

Mitigation work to address coal smoldering underground at Marshall Mesa Trailhead complete 00:28 Officials from the Division of Mining Reclamation and Safety say extensive mitigation efforts in ...

Kenney said in October that Xcel is committed to making payments to help compensate for property tax revenue lost when power plants and mines shut down. The transition plan outlines 10 years of ...