• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Environmentnative americans

Navajo Nation plans to block federal highways to stop uranium from being transported on its land

By
Felicia Fonseca
Felicia Fonseca
and
The Associated Press
The Associated Press
Down Arrow Button Icon
By
Felicia Fonseca
Felicia Fonseca
and
The Associated Press
The Associated Press
Down Arrow Button Icon
July 31, 2024, 6:15 AM ET
Navajo Nation President Buu Nygren addresses a crowd at an indoor sports arena, on Jan. 10, 2023, in Fort Defiance, Ariz.
Navajo Nation President Buu Nygren addresses a crowd at an indoor sports arena, on Jan. 10, 2023, in Fort Defiance, Ariz. Felicia Fonseca—AP

The Navajo Nation planned Tuesday to test a tribal law that bans uranium from being transported on its land by ordering tribal police to stop trucks carrying the mineral and return to the mine where it was extracted in northern Arizona.

Recommended Video

But before tribal police could catch up with two semi-trucks on federal highways, they learned the vehicles under contract with Energy Fuels Inc. no longer were on the reservation.

Navajo President Buu Nygren vowed to carry out the plan to enact roadblocks while the tribe develops regulations over the first major shipments of uranium ore through the reservation in years.

“Obviously the higher courts are going to have to tell us who is right and who is wrong,” he told The Associated Press. “But in the meantime, you’re in the boundaries of the Navajo Nation.”

The tribe passed a law in 2012 to ban the transportation of uranium on the vast reservation that extends into Arizona, New Mexico and Utah. But the law exempts state and federal highways that Energy Fuels has designated as hauling routes between the Pinyon Plain Mine south of Grand Canyon National Park for processing in Blanding, Utah.

Still, Nygren and Navajo Attorney General Ethel Branch believe the tribe is on solid legal footing with a plan for police to block federal highways, pull over drivers and prevent them from traveling farther onto the reservation.

Energy Fuels said it began hauling the ore as planned Tuesday and had informed federal, state, county and tribal officials more than 10 days ago about the legal requirements, safety, emergency response and the imminent shipping of uranium ore, though it didn’t give a specific date. Spokesman Curtis Moore said no one said that wasn’t sufficient.

“Tens of thousands of thousands of trucks have safely transported uranium ore across northern Arizona since the 1980s with no adverse health or environmental effects,” the company’s president and chief executive, Mark Chalmers, said in a statement. ”Materials with far greater danger are transported every day on every road in the county. Ore is simply natural rock. It won’t explode, ignite, burn or glow, contrary to what opponents claim.”

The Arizona Department of Transportation and the Arizona Department of Public Safety, which have jurisdiction on state and federal highways through the reservation, didn’t immediately return email messages seeking comment.

The Kaibab National Forest where the mine is permitted said it was notified after hauling began Tuesday morning, then contacted tribes, local officials and others, spokeswoman Brienne Pettit said. The forest also requested advanced notification, she said.

Officials with Coconino County and the Navajo Nation said Energy Fuels verbally agreed — but is not required to — give communities along the route at least a week’s notice before any truck hauled uranium through them. Nygren said the tribe got a notification Tuesday that trucks had left the mine site and were driving north through Flagstaff.

Energy Fuels, the largest uranium producer in the United States, recently started mining at the Pinyon Plain Mine for the first time since the 1980s, driven by higher uranium prices and global instability. The industry says uranium production is different now than decades ago when the country was racing to build up its nuclear arsenal.

No other sites are actively mining uranium in Arizona.

Chalmers said uranium ore mined from Pinyon Plain is transported in tightly covered vehicles that have placards indicating the contents are radioactive. The shipments, driven by licensed and trained operators, comply with regulations and law, he said. Mining during World War II and the Cold War left a legacy of death, disease and contamination on the Navajo Nation and in other communities across the country, making any new development of the ore a hard pill to swallow. The Havasupai tribe is among the tribes and environmentalists that have raised concerns about potential water contamination.

Republicans have touted the economic benefits the jobs would bring to the region known for high-grade uranium ore.

In 2013, the Navajo Nation told another uranium producer that it would deny access to a ranch that surrounded a parcel of Arizona state trust land where the company planned to mine. At the time, the tribe cited a 2005 law that banned uranium mining on its lands and another 2006 law that addressed transport. The mining never occurred, although it also needed other things like a mineral lease and environmental permits.

Stephen Etsitty, executive director of the Navajo Nation Environmental Protection Agency, said the tribe had been meeting with Energy Fuels since March to coordinate emergency preparedness plans and enact courtesy notifications.

Based on those meetings, Etsitty said the tribe didn’t expect Energy Fuels to transport uranium through the Navajo reservation for at least another month or until the fall.

On Tuesday, he said the tribe found out indirectly about the trucks, leaving officials frustrated on what is primary election day in Arizona. Moore, the company spokesman, said Energy Fuels is required to notify the tribe of any spills or accidents.

Etsitty said accidents involving trucks carrying hazardous or radioactive material occur on average once every three to five years on the reservation. But the possibility requires the tribe to notify emergency responders along the route. Because the material being transported from the mine is uranium ore, rather than processed ore, the risk of radiation exposure is lower, Etsitty said.

“It is a danger, but it would take a longer period of time for somebody to get acute exposure at a spill site,” he said. “Precautions still need to be taken.”

The Fortune 500 Innovation Forum will convene Fortune 500 executives, U.S. policy officials, top founders, and thought leaders to help define what’s next for the American economy, Nov. 16-17 in Detroit. Apply here.
About the Authors
By Felicia Fonseca
See full bioRight Arrow Button Icon
By The Associated Press
See full bioRight Arrow Button Icon

Latest in Environment

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Environment

Workers on the production line of solar panels in China
EnergyRenewables
After renewable power’s record-smashing 2025, the Iran war could accelerate the shift as countries seek ‘structurally more resilient’ energy, UN says
By Tristan BoveApril 2, 2026
46 minutes ago
china
AIChina
Meet China’s AI-powered recycling robot that sorts 220 pounds of clothes in 2 to 3 minutes
By Tian MacLeod Ji and The Associated PressApril 2, 2026
2 hours ago
A chip research center site operations manager stands next to a window overlooking the facility.
EnvironmentData centers
Data centers are so hot their ‘heat island’ effect is raising temperatures up to 6 miles away and impacting 343 million people worldwide, study finds
By Sasha RogelbergApril 1, 2026
1 day ago
trump
CommentaryEPA
The EPA just valued a human life at $0. That’s not just a moral crisis — it’s a market crisis
By Andrew BeharApril 1, 2026
1 day ago
rice's whale
Environmentendangered species
Trump’s plan to drill for oil in the Gulf of Mexico could be foiled by just 50 survivors of a rare whale species
By Tammy Webber and The Associated PressMarch 31, 2026
2 days ago
burgum
Environmentendangered species
Washington’s ‘God Squad’ assembles to debate the fate of a rare endangered whale and drilling in the Gulf of Mexico
By Matthew Brown and The Associated PressMarch 31, 2026
2 days ago

Most Popular

Gen Z fled San Francisco for Texas and Florida. Now they’re turning ‘welcomer cities’ into the next big tech towns
Real Estate
Gen Z fled San Francisco for Texas and Florida. Now they’re turning ‘welcomer cities’ into the next big tech towns
By Fortune EditorsApril 2, 2026
11 hours ago
Current price of gold as of April 1, 2026
Personal Finance
Current price of gold as of April 1, 2026
By Fortune EditorsApril 1, 2026
1 day ago
Two-thirds of parents say their adult Gen Z kids still rely on them financially  for support—even though it's putting them under strain
Success
Two-thirds of parents say their adult Gen Z kids still rely on them financially  for support—even though it's putting them under strain
By Fortune EditorsMarch 31, 2026
2 days ago
Current price of oil as of April 1, 2026
Personal Finance
Current price of oil as of April 1, 2026
By Fortune EditorsApril 1, 2026
1 day ago
Deutsche Bank asked AI if it’s true that AI will solve the economy’s inflation problems. The robots answered
Economy
Deutsche Bank asked AI if it’s true that AI will solve the economy’s inflation problems. The robots answered
By Fortune EditorsApril 1, 2026
23 hours ago
The tax escape map: Billionaires are bolting for Florida from the West Coast and taking billions in tax revenue with them
Real Estate
The tax escape map: Billionaires are bolting for Florida from the West Coast and taking billions in tax revenue with them
By Fortune EditorsApril 2, 2026
12 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.