News Mine worker’s death being investigated 05/01/2026 FacebookTwitterEmail A worker died in a roof collpase at Coronado's Mammoth Underground Mine last week. (Breanna Lloyd: 527037) Authorities are investigating following a 59-year-old Banya man's death in a roof collapse at Coronado's Mammoth Underground Mine on Friday, […] Subscribe or Login to see the rest of the content. Username Password * Remember Me Forgot Password