The Cardiff Mining Company was incorporated in the state of Utah in December of 1906. Company officers included: Lynn H. Thompson, President; Ezra P. Thompson, Vice-President; Clyde R. Thompson, Treasurer; W.W. Murdock, Secretary; F.W. Price, additional Director.

in 1929 the company owned 16 patented claims and had workings that totaled more than 5000'. The company paid several dividends from 1915 to 1927 totaling over $1,000,000, but before the ups, came the downs. The company issued at least nine stock assessments before that first dividend was paid.

Once the large ore bodies were struck, the company operations expanded. A large number of surface buildings were constructed, as were very large ore bins, one at the mine, the other at the mouth of South Fork at Renyolds Flat. The larger of the two being the one down at the canyon mouth.

Initially ore from the mine was drawn by wagon teams from mine to the flats, and then from the flats to the Salt Lake Valley. All that would change when concerns over water quality and other matters prompted a change to 4-wheel drive trucks.

It was even contemplated that an aerial tramway would be put in place to carry the ore from the mine down as far as the ore bins and eliminate that part of the ore haul. Though contemplated, the tramway was never built. 

The mine was worked off and on until well into the 1950's, when active mining ceased.