Columbia County, GA borders Richmond County, and includes the Augusta communities of Appling, Martinez, Evans, Harlem, and Grovetown. Many of its residents work at the area’s largest employers, including the Savannah River Site – a Department of Energy nuclear facility, Fort Gordon, and Georgia’s Health Sciences University (GHSU), formerly known as Medical College of Georgia. Points of interest include the Savannah Rapids Pavilion at the Augusta Canal, Clarks Hill Lake and Dam and Heggie’s Rock. Columbia county is served by the Columbia County Public Schools as well as Augusta Christian Schools and Augusta Preparatory Day School, both in Martinez.