The open-pit Midnite Mine, which provided radioactive material for nuclear weapons, closed operations in 1981. Brothers Jim LeBret and John LeBret were prospecting on the Spokane Reservation with a ...

EAGLE, Colorado ” The Eagle Mine and its impact on water quality in the Eagle River is the topic of this month’s Waterwise Wednesday, from 5:30 p.m. to 7 p.m., April 30 at the Eagle Public Library.

Mine ventilation systems are critical for ensuring a safe and healthy working environment in underground mining operations. They are designed to regulate and direct airflow to dilute and remove ...