The Horn Silver Mine was discovered in 1875, and had produced $20,267,078 worth of ore by 1910. By 1885, over $60,000,000 worth of zinc, copper, lead, silver, and gold had been transported from Frisco from the many mines in the area.
[url]http://historytogo.utah.gov/utah_chapters/mining_and_railroads/whenthehornsilverminecrashedin.html[/url]