Companies on Anderson Mill Road have spent decades removing limestone and crushed rock from beneath Cedar Park.
Quarrying at the site began in April 1929 when W. H. Johnson started researching Texas limestone and founded Texas Quarries. The company unearthed large cubes of the ancient rock and shipped them to Austin to be cut at a mill that ran on a new power source—electricity—provided by the Texas Power & Light Company.
In 1959, M.E. Ruby Jr. Inc. founded another quarrying operation on Anderson Mill Road. At first workers dug blocks of stone to be used for highway construction, said Mark McKenzie, president of Ranger Excavating, which bought the company in 1996.
Today the company still sells crushed limestone that workers blast out of the quarry on its 200-acre parcel of land south of the Texas Quarries site, McKenzie said. For its blasting operations the company uses less powerful charges than it has in the past, he said. Before 1996, the blasting schedule was unpredictable, but it is now performed at about 10 a.m. or 2 p.m. on weekdays. Federal guidelines and a city permit govern M.E. Ruby's blasting procedures, McKenzie said.













