Image source: https://www.pexels.com/photo/bushes-on-grassland-under-white-clouds-10366256/Critical minerals developer 3 Proton Lithium (3PL) has identified what could become the largest known tungsten deposit in the United States at its Railroad Valley Minerals project in eastern Nevada. According to the company’s latest resource assessment, the project contains an inferred tungsten resource of 1.78 million tonnes. If future technical and economic studies confirm the deposit can be mined profitably, it would exceed the country’s next largest known tungsten resource by more than five times. The company estimates the in situ value of the identified tungsten resource at approximately US$152 billion based on current tungsten prices. NASA Land Withdrawal Limits ExplorationExploration is blocked on roughly one-third of the claim package due to a federal land withdrawal approved in 2023.