Enormous Reserve of ‘Hidden Treasure’ Found Under Arkansas [Video]

A U.S. Geological Survey (USGS)-led study has revealed an enormous lithium deposit in southwestern Arkansas that could potentially revolutionize the global electric vehicle industry.

Using innovative water testing methods combined with machine learning, researchers estimate the region contains between 5 and 19 million tons of lithium reserves—enough to meet projected 2030 world demand for lithium in car batteries nine times over.

The discovery focuses on lithium-rich brines within the Smackover Formation, an ancient seabed that extends across several Southern states. The finding is particularly significant as it could reduce U.S. reliance on imports of the raw material.

“Lithium is a critical mineral for the energy transition, and the potential for increased U.S. production to replace imports has implications for employment, manufacturing and supply-chain resilience,” David Applegate, the USGS director, said in a statement. “This study illustrates the value of science in addressing economically important issues.”