<P> Travellers along the Oregon Trail bound for the Willamette Valley are said to have discovered gold in northeastern Oregon in 1845, but mining in earnest did not begin until 1861 . </P> <P> About 37,000 troy ounces (1,200 kg) of gold was produced from the Cornwall iron mine five miles south of Lebanon, Lebanon County, Pennsylvania . Although the deposit produced iron since 1742, no gold was reported from the mine until 1878 . </P> <P> South Carolina had a number of lode gold mines along the Carolina Slate Belt . </P> <P> The Haile deposit was discovered in Lancaster County in 1827, and at least 257,000 troy ounces (8,000 kg) of gold were extracted intermittently between then and 1942, when the gold mine was ordered closed as nonessential to the war effort . Beginning in 1951, the deposit was mined for associated sericite, which was used as a white filler . Gold is associated with silicic, kaolinitic, and pyritic alteration of greenschist - grade felsic metavolcanics . The mine was reopened as an open pit in the 1980s, and operated until 1992 . Kinross Gold Corporation's reclamation of the Haile site was nominated for a US Bureau of Land Management "Hardrock Mineral Environmental Award ." </P>

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