Earth and Ecosystem scientists conduct a wide variety of archaeological research in regions ranging from the arid Southwestern U.S. to China. The research ranges from studies of earlier civilizations to studies focused on the preservation of historic legacies from recent events such as nuclear testing at the Nevada National Security Site (formerly, the Nevada Test Site). Our archaeologists are conducting historic artifact inventories with federal agencies to facilitate stewardship decisions as they appropriate lands for specific uses. These land uses include military training, construction of power lines and prospecting and development for renewable energy projects including solar, wind and geothermal. Archaeologists at DRI make use of modern techniques including ground penetrating radar (GPR) and light detection and ranging (LiDAR), often in combination with geographic information systems (GIS) and specialized laboratories equipped with traditional light and electron microscopes.