Federal employee retirements are processed using paper, by hand, in an old limestone mine in Pennsylvania. 700+ mine workers operate 230 feet underground to process ~10,000 applications per month, ...

Alamo officials today confirmed that limestone from a historic quarry that once existed at the zoo’s location was excavated ...

Elon Musk drew attention to a decades-old converted underground limestone mine in Pennsylvania his Department of Government Efficiency (DOGE) team stumbled upon that is still being used to process ...

SAN ANTONIO - A groundbreaking historical discovery has finally pinpointed the quarry that provided the limestone used to ...

Limestone is a valued and valuable commodity ... and the health of the workers at the quarry are more valuable than a bucket of stone.” Neiswonger Construction, headquartered in Strattanville, about ...

While it’s tough enough to withstand foot traffic and the elements, limestone is also a soft stone, meaning it can easily be scratched or damaged by harsh chemicals. Understanding the correct ...

The San Antonio Zoo limestone, discovered during the construction of Congo Falls, will be used to repair the walls of the ...

A monumental discovery has been made in the San Antonio Zoo, confirming the exact quarry that provided the limestone to build the Alamo and solving a mystery spanning centuries.

A significant historical discovery has confirmed the exact quarry that provided the limestone used to build the Alamo, ...