Via Utah.gov, the bizarre story behind the “Dream Mine” built by a nineteenth-century Mormon bishop-prophet famed for his dreams that predicted the future:
The so-called Dream Mine is located east of Salem in Utah County.
In August 1894, John H. Koyle experienced a dream in which he was visited by a figure from another world. The visitor carried him to a high mountain east of Koyle’s house and into the mountain, showing him the various strata and explaining the meaning of the minerals. The visitor showed Koyle an ancient “Nephite” mine with large rooms of mined-out ore bodies. The rooms contained treasure and artifacts of an extinct civilization.
Koyle was instructed that he was to open a mine and extract gold for the welfare of “his” people. The riches would be found and released to him and his followers during a time of world crisis. The wealth would be spread to others through Koyle and the people organized around the mine.