The Betty O'Neal mill was established around 1880 to process ore from the Betty O'Neal Mine. In December 1881, a serious boiler explosion destroyed a lot of the mill machinery and the mill had to be rebuilt. The mill shutdown in 1885, and lay dormant until around 1922 when mining giant Noble Gretchell reopened it and installed a modern mill. A company town was established with a newspaper (The Concentrator), a baseball team, and a post office. The Betty O'Neal produced over $2-million in silver and gold during the next seven years, 1928-29 being the peak years. The post office closed in 1932.