The Mineral Hill Rare Earth Elements Project is comprised of 109 unpatented lode mining claims covering an area of approximately 830 hectares (2,100 acres). This Project is located within the Mineral Hill Mining District, approximately 48 kilometers (30 miles) northwest of Salmon, Idaho. In Idaho, most of the lode REE occurrences lie along a northwest trending line that extends from Lemhi Pass, through Diamond Creek, to the Mineral Hill district, before crossing the Idaho-Montana state line. This lineament stretches more than 50 miles across central Idaho. The Mineral Hill Project is on this trend and is the next best REE mineralization northwest of IDR’s Diamond Creek Project.
The Mineral Hill district was historically prospected in the early 1900’s for gold and copper. Rare earth element (REE) mineralization was first discovered in the early 1950’s. Studies conducted by A. T. Abbott (1954) and A. L. Anderson (1958) from the Idaho Geological Survey, and E. P. Kaiser (1956) with the USGS, pioneered recognition of these REE occurrences. Abbott reported cutting a 2.5-foot sample across the Roberts Lode which returned 21.5 % combined rare earth oxides and thoria.