The first recorded mining claim in Park City was in 1869, ‘The Young American Lode.’ In 1870 it became the Ontario Mine. In it’s day it was considered the greatest silver mine in the world. In 1872, it was sold to George Hearst of San Francisco for $27,000. The mine did not make any money for the first three years. To keep the mine working Hearst sold his home and horses, dismissed his servants and even put his young son, ‘William Randolph Hearst into a public school. The mine eventually produced $50 million in ore and had paid George more than $12 million in dividends. This and his other mines became the source of his extensive financial empire.
The Ontario Mine is up straight up Marsac on the right just before you turn left to go up to Silver Lake.