The US government has extended a temporary ban on new uranium mine stakes around the Grand Canyon in Arizona by six months.

The extension will give officials time to study the impact of a 20-year ban on the one-million-acre public lands around the Grand Canyon National Park.

New mining claims will not be allowed; however, the ban does not apply to existing mines and mining claims made before 2009 will be allowed to proceed.

US interior secretary Ken Salazar told reporters in the area that uranium mining will continue in northern Arizona, Wyoming and other states.

The move was supported by environmentalists, who said that mining will destroy land within sight of the Grand Canyon and potentially impact the Colorado River, reports Walls Street Journal.