The Northern Territory Environment Centre is calling on the Federal Government to roll back uranium mining in Kakadu National Park.

A traditional owner of the Koongarra site - which is leased by French mining company Areva - has applied to the Government to include the land in the national park.

The move would halt Areva's long-standing plans to mine the uranium-rich land which holds a $5 billion deposit.

The deposit is located at the east of the park, close to Nourlangie Rock, one of the park's popular tourist attractions.

The Environment Centre's Stuart Blanch says the Government should act on the traditional owner's request and then follow suit with Jabiluka.

"We'd like the Federal Government to start talking to Rio Tinto as well about rolling Jabiluka back into Kakadu National Park," Mr Blanch said.

"People including the traditional owners, environmentalists, including many people in the public have stopped Jabiluka once before.

"We would like the Government to realise that people want Kakadu expanded and uranium mining in Kakadu to stop."

He says it is encouraging the traditional owner has put the environment before financial gain.

"This is wonderful news. We congratulate Jeff Lee, the traditional owner, for making sure it is never opened for uranium mining and it's wrapped back into world heritage listed Kakadu National Park."