POWELL VALLEY STONE COMPANY, INCORPORATED

Crushed and Broken Limestone Mining and Quarrying

This includes (1) establishments primarily engaged in developing the mine site, mining or quarrying crushed and broken limestone (including related rocks, such as dolomite, cement rock, marl, travertine, and calcareous tufa) and (2) preparation plants primarily engaged in beneficiating limestone (e.g., grinding or pulverizing).