Uranium Mining and Indigenous Peoples: Rights, Legacy

Reference article · Updated 2026-11-06

Key facts

EPA describes about 523 abandoned uranium mines on the Navajo Nation, four former mill sites, and homes and water sources with radiation above natural background.
The Ranger mine in Australia's Northern Territory ceased production in January 2021. The Mirarr Traditional Owners, represented by Gundjeihmi Aboriginal Corporation, are involved in its closure plan.
In northern Saskatchewan, Cameco and Orano have signed collaboration agreements with seven Athabasca Basin communities, and the Cluff Lake site was released from licensing in 2023.
Independent laboratories have reported health and environmental effects around the Arlit mines in Niger. The operator disputed them.
UNDRIP, adopted in 2007, is not legally binding. Article 32(2) nonetheless calls on states to obtain free and informed consent before approving projects affecting Indigenous lands.

Why uranium and Indigenous territories so often overlap

Uranium deposits lie in remote regions. Colonial governments often saw them as sparsely settled, yet Indigenous peoples had long inhabited them. Examples are the Colorado Plateau, the Athabasca Basin, Arnhem Land and the Aïr Mountains of the Sahara.

Mining, milling and waste disposal in such areas raised two kinds of questions. Some are technical: radiological and chemical exposure, and water quality. Others concern rights: land title, consent, benefit sharing and the cost of cleanup.

The cases below come from official, regulatory or peer-reviewed material. They are not a complete list, and conditions differ greatly between countries and eras. For the underlying hazards, see uranium toxicity and mill tailings.

UNDRIP and free, prior and informed consent

The UN General Assembly adopted the United Nations Declaration on the Rights of Indigenous Peoples (UNDRIP) on 13 September 2007 as resolution 61/295. It is a declaration, not a treaty, and is not legally binding in itself. A large majority of states voted in favour. Four states (Australia, Canada, New Zealand and the United States) voted against and have since endorsed it.

Provisions relevant to mining include:

Article 32(2): states shall consult and cooperate in good faith with Indigenous peoples through their own representative institutions. The aim is to obtain their free and informed consent before approving projects affecting their lands, territories and other resources, particularly in connection with mineral development.
Article 29: states shall take effective measures so that no hazardous materials are stored or disposed of on Indigenous lands without free, prior and informed consent.
Article 28: Indigenous peoples have a right to redress, including restitution or compensation, for lands taken or damaged without their free, prior and informed consent.

Scholars and governments debate what Article 32 requires in practice, in particular whether consent amounts to a veto. The text does not define consultation or consent in detail. National law, treaty rights and company policy decide how a given mine applies the principle.

Navajo Nation, United States: abandoned mines and Church Rock

Abandoned mines

According to the US Environmental Protection Agency (EPA), miners extracted nearly 30 million tons of uranium ore from Navajo lands between 1944 and 1986, under leases with the Navajo Nation. EPA's Ten-Year Plan for 2020 to 2029 describes the remaining legacy:

an estimated 523 abandoned uranium mines;
four former mill sites;
numerous homes and water sources with radiation levels above natural background.

The plan follows two earlier five-year plans (2008 to 2012 and 2014 to 2018). EPA reported that funds were available to begin assessment and cleanup at 230 of the 523 mines. The Department of Energy's Defense-Related Uranium Mines programme joined the plan to safeguard openings at about 293 sites. The Lukachukai Mountains Mining District has been added to the Superfund National Priorities List.

Church Rock

On 16 July 1979 the tailings dam at the United Nuclear Corporation mill at Church Rock, New Mexico, breached. The mill stood on private land next to the Navajo Nation. Published accounts describe about 90 to 95 million gallons of acidic, radioactive liquid and roughly 1,100 tons of solid waste entering a tributary of the Puerco River. The site was placed on the National Priorities List in 1983. Further background on dam failures is in uranium mill tailings dam failures.

Mirarr and the Ranger and Jabiluka leases, Australia

The Ranger mine lies about 230 km east of Darwin in the Northern Territory, surrounded by Kakadu National Park. It opened in 1981. According to the World Nuclear Association, production ceased in January 2021 when the Ranger Authority expired. Ranger and the earlier Nabarlek mine are on Aboriginal land. Aboriginal people receive royalties of 4.25% on sales of uranium from Northern Territory mines, and royalties from Ranger totalled over A$207 million.

The Gundjeihmi Aboriginal Corporation (GAC) represents the Mirarr Traditional Owners. GAC states that Ranger was developed without their consent. In October 2015 the Mirarr refused consent for mining to continue beyond the existing project.

The adjoining Jabiluka lease has resources above 130,000 tonnes of uranium oxide. It was excluded from the national park. A lease was granted in 1982, and further approvals followed the 1996 change of government. An access decline was built, but mining was deferred pending agreement on processing at the Ranger mill. ERA has stated it will not proceed with the mine without agreement from the Mirarr.

Rehabilitation is now the central issue. ERA prepared its 2023 closure plan with Mirarr input, and the plan uses cultural closure criteria. The Australian government has said its aim is for the Mirarr to return to Country as soon as it is safe. Rio Tinto, the majority owner, took over management of rehabilitation work. Deadlines and costs have been revised several times.

Northern Saskatchewan: agreements, employment and decommissioning

The Athabasca Basin in northern Saskatchewan contains the world's highest-grade uranium operations (see uranium mines and mills in Canada). It is the traditional territory of Dene, Cree and Métis communities. A different model operates here than in the Navajo or Niger cases: since the late 1990s, operators have signed formal agreements with nearby communities.

Cameco described its 1999 impact management agreement with northern communities as one of the first programs of its kind in Canada.
In 2016 Cameco and Orano signed the Ya'Thi Néné collaboration agreement with seven Athabasca Basin communities, including Black Lake, Fond du Lac and Hatchet Lake First Nations. It is organised around workforce, business development, community engagement, environmental stewardship and community investment.
The Eastern Athabasca Regional Monitoring Program, established in 2011, provides an independent framework for assessing effects of mining and milling.
Cameco reports that more than half its northern Saskatchewan workforce is of First Nation or Métis heritage. Orano reports that over 49% of employees at McClean Lake self-identify as Indigenous.

Concerns and Cluff Lake

These are company statements, and concerns remain. In 2004 the Clearwater River Dene Nation and residents of La Loche held a week-long road blockade. They said they had been bypassed for jobs from the Cluff Lake decommissioning.

The Cluff Lake mine produced over 62 million pounds of uranium concentrate between 1979 and 2002. The Canadian Nuclear Safety Commission revoked its licence in May 2023, so the site could enter Saskatchewan's institutional control programme. Dene nations were among those participating in the hearing.

Arlit, Niger: contested evidence on health and waste

The Arlit and Akokan mines (see uranium mining in Africa) are in the Aïr region of northern Niger, home to Tuareg and other communities. The independent laboratory CRIIRAD and the Arlit-based NGO Aghir In'Man reported two findings:

Tests of water distributed in Arlit between 2003 and 2005 found uranium levels 10 to 110 times above the levels the World Health Organization considers acceptable.
In 2013, about 1,600 tonnes of metal from the mine complexes had entered the public domain, and some was found at a scrap yard.

The then operator Areva responded that it had halted scrap removal and that the items carried traces of contamination.

Health effects are disputed. The NGOs acknowledged that attributing illness to the mines is difficult without further study. A 2006 study commissioned by Cominak reported respiratory-linked deaths at roughly twice the national rate. Areva said the problems were typical of desert zones.

CRIIRAD has also said, citing company documents, that tailings contaminate groundwater supplying the Arlit area. The operator said it would cover the tailings with clay and rock. Since 2023 the mines have come under state control, so responsibility for remediation is itself an unresolved question.

Frequently asked questions

How many abandoned uranium mines are on the Navajo Nation?

EPA estimates about 523 abandoned uranium mines, together with four former mill sites, in its Ten-Year Plan for 2020 to 2029.

What is free, prior and informed consent?

It is a principle reflected in the UN Declaration on the Rights of Indigenous Peoples. In Article 32(2), the Declaration calls on states to obtain free and informed consent before approving projects affecting Indigenous lands. The Declaration is not legally binding, and the scope of consent is debated.

Who are the Mirarr?

The Mirarr are the Traditional Owners of the area around the Ranger and Jabiluka uranium leases in Australia's Northern Territory. The Gundjeihmi Aboriginal Corporation represents them.

Do Indigenous communities in Saskatchewan have agreements with uranium companies?

Yes. Cameco and Orano have collaboration and impact management agreements with Athabasca Basin communities. These include the 2016 Ya'Thi Néné agreement with seven communities.

Is the link between the Arlit mines and local illness proven?

No. Independent laboratories have reported contamination, but attributing health effects to the mines is disputed. The NGOs themselves have said further research is needed.