In the 1890s, a new gold process helped turn Mercur, Utah, into a boomtown of over 2,500; by 1913, the mine had closed, and the original townsite was abandoned, though mining later resumed

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In the late 19th century, Mercur, Utah, became an influential mining hub fueled by new gold extraction methods, notably cyanide processing which efficiently mined low-grade ore. However, by the early 1910s, falling profit margins resulted in mine closures, contributing to the town's deterioration. Revival efforts in later decades were unsuccessful, leaving Mercur as a poignant testament to the dual nature of mineral riches.