Commodity money as a theoretical backing for federally issued "gold certificates" to substitute for the gold. Between 1933 and 1970 (when the U.S. officially left the gold standard), one U.S. dollar was technically worth exactly 1/35 of a troy ounce (889 mg) of gold. However, actual trade in gold bullion as a precious metal within the United States was banned after 1933, with the explicit purpose of preventing the "hoarding" of private gold during an economic depression period in which maximal circulation of money was desired by influential economists. This was a fairly typical transition from commodity to representative to fiat money,
Aurum, Nevada locally as "Doughburg." On February 11, 1884, an avalanche occurred in Silver Canyon, above the boarding house of the Sadie L Mine. Three people were killed. Two of the victims, H. W. Mickel, and Wallace McCrimmon, were buried at Aurum. The other victim, John Fox, was taken into Cherry Creek for burial. Over the following decades, the community experienced multiple periods of boom and bust. During booms, the community's population rapidly swelled to hundreds of people. However, during busts, miners left, businesses closed, and the population rapidly dwindled. During one of these "busts", the population dropped to only one inhabitant