The dizzying scope of abandoned mine hazards on public lands (High Country News, 1/28/2022)
Public health assessment: Formosa Mine, Riddle, Oregon. (2010) Oregon Department of Human Services
The dizzying scope of abandoned mine hazards on public lands (High Country News, 1/28/2022)
Public health assessment: Formosa Mine, Riddle, Oregon. (2010) Oregon Department of Human Services