Mine Safety and Health Administration (MSHA) Report of
Lone Star Quarry amp; Mill, a surface cement plant and quarry owned and operated by Buzzi Unicem USA, was located at Cape Girardeau, Cape Girardeau County, Missouri. The principal operating official was William S. Leus, plant manager. The mine operated three 8hour shifts per day, seven days per week. Total employment was 152 persons.