Massive Lithium deposit potential worth $1.5 trillion found in Oregon a huge cache could massively strengthen the US stance in building items such as smartphones, but environmentalists urge caution in acting too fast

Date:
Fri, 15 May 2026 21:25:00 +0000

Description:
Geologists discovered a massive lithium deposit beneath Oregon, triggering debates over mining expansion, environmental risks, and economic development opportunities.

FULL STORY ======================================================================Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Threads Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter Oregons volcanic sediments may contain one of Americas largest lithium reserves ever discovered Residents fear mining expansion could permanently damage fragile desert wildlife habitats nearby Mining companies want hundreds of wells drilled across
Oregons remote high desert terrain Geologists have identified what could be one of the largest lithium deposits ever found in the United States beneath Oregon's McDermitt Caldera.

Reports claim the ancient volcanic sediments may contain between 20 and 40 million metric tons of lithium, with an estimated value of roughly $1.5 trillion. The discovery could significantly strengthen America's domestic supply of a metal essential for building smartphones, electric vehicle batteries, and renewable energy storage systems. Latest Videos From You may like Large lithium discovery in Appalachia may reduce US reliance on foreign imports Chinese researchers develop iron battery 80 times cheaper than
lithium Forget solid-state batteries researchers have made a lithium-ion breakthrough that could boost range and drastically lower costs Lithium matters for US manufacturing Global demand for lithium has skyrocketed due to the rapid transition toward cleaner transportation and renewable energy storage, and the metal's light weight and excellent electrochemical
properties make it irreplaceable in modern battery production for now.

A domestic source would reduce American reliance on foreign supply chains, which could lower geopolitical risks and trade vulnerabilities.

Malheur County is among Oregon's poorest areas, and some residents hope new mining jobs might brighten the region's economic outlook.

"This feature is 16 million years old, and we're making decisions in a matter of years," said Sammy Castonguay, a geologist at Treasure Valley Community College. Are you a pro? Subscribe to our newsletter Sign up to the TechRadar Pro newsletter to get all the top news, opinion, features and guidance your business needs to succeed! Contact me with news and offers from other Future brands Receive email from us on behalf of our trusted partners or sponsors By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.

Her statement has stirred local debate over how quickly development might reshape the fragile high desert ecosystem, as the region supports pronghorn antelope, sage grouse, and other sensitive species that could be displaced by large-scale mining operations.

The Oregon Chapter of the Sierra Club supports cleaner energy but believes drilling must not come at the expense of fragile habitats. Economic and environmental protection tensions Proposals from mining companies seek to add roads and hundreds of wells to test for lithium in Malheur County. What to read next A buried geological structure beneath eastern America could amplify solar storm damage US rare earth independence hinges on risky processing technology Micron's $50 billion chip factory in Idaho will use billions of litres of water every year

The Bureau of Land Management once offered a brief window for public comment, which drew criticism from groups who said that it was not enough time.

Tribal leaders have contested past proposals by pointing to sites sacred for ceremonies and important for traditional ways of life.

"We need to do this the Oregon way with full accountability and shared benefits," said Greg Smith, director of economic development in Malheur County.

The lithium is hosted in volcanic-rich sediments, which have been altered to lithium-rich claystone.

Unfortunately, processing claystone may require complex techniques, including acid leaching, which raises questions about waste disposal and water safety.

Local communities want to ensure they are not left with the environmental
mess once the initial excitement fades.

The debate often centers on water needs for drilling and processing, as past drilling in high desert regions has shown that groundwater tables can be affected by large-scale operations.

Scientists believe that there are better ways to source the metal without destroying fragile desert ecosystems.

Advocates maintain that these lithium-rich claystones represent a crucial resource in an era when every major carmaker is transitioning to electric models.

The disagreements need to be sorted out soon because the lithium is worth
$1.5 trillion, and that number will not wait for endless community meetings.

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