The Largest Radium Concentration Mill in the World.

The Mill of the Standard Chemical Company of Pittsburgh, in the wilds of Colorado. This was the first Radium Concentration
Mill erected in America. It is located in Southwestern Colorado, sixty-five miles from any railroad. i
Through this Mill has passed all the Ore from which has been refined more than half of all the Radium now available in the
world. The methods for extracting Radium from the low grade ores of America, first worked out in this Mill, are now the basis for
all the work that is done in this country for the extraction of Radium.
This Mill was erected by Joseph M. Flannery, of Pittsburgh in 1911.