United States, Georgia, 32.75042, -83.500182004Careful measurement and record keeping is critical to archaeological investigation. Historic preservation commission members use a theodolite (surveyor's scope) to measure land gradient.Photograph of three historic preservation commission members using a theodolite, or surveyor's scope, to measure land gradient in Georgia. A woman wearing a gray stocking cap holds an electronic device in her hand. The two men, looking over her shoulders, watch her working with the device. They stand in front of a line of trees.image/jpeghttp://www.georgiaencyclopedia.org/articles/arts-culture/local-government-historic-preservation-commissionsForms part of: New Georgia Encyclopediahttp://rightsstatements.org/vocab/UND/1.0/http://www.georgiaencyclopedia.org/articles/arts-culture/local-government-historic-preservation-commissionsForms part of: New Georgia EncyclopediaSurveyors--GeorgiaWomen surveyors--GeorgiaLand use surveys--GeorgiaSurveying--InstrumentsMen--GeorgiaWomen--GeorgiaTrees--GeorgiaTools--GeorgiaLand SurveyStillImage