The ruling allows a major mining company to take control of Oak Flat.
Environmental groups are raising alarms over potential ecological damage.
The decision follows a lengthy legal battle over land rights.
Strategic angle: The Trump administration's decision to transfer Oak Flat to a mining company has sparked significant environmental concerns.
The ruling allows a major mining company to take control of Oak Flat.
Environmental groups are raising alarms over potential ecological damage.
The decision follows a lengthy legal battle over land rights.