Precious metals of Wyoming

Within the State boundaries are numerous gold deposits and anomalies scattered throughout the geological record. Many examples occur in rocks ranging in age from Archean to Tertiary, and in Quaternary to Recent unconsolidated gravels and sands. Yet relatively few of these deposits and anomalies have been explored and only a handful have been drilled. Since much of Wyoming is underlain by an Archean craton similar to the Superior Province of Canada, the eastern and southern African craton, and the Pilbara and Yilgarn blocks of Western Australia, one would expect Wyoming to also have significant mineralization.