 In the early 21st century, Petersburg civic leaders were highlighting the city's historical attractions for heritage tourism, and the industrial sites reachable by the transportation infrastructure.Military activity has been expanded by the federal government at nearby Fort Lee, home of the United States Army's Sustainment Center of Excellence, and the Army's Logistics Branch, Ordnance, Quartermaster, and Transportation Corps.Archaeological excavations at Pocahontas Island have found evidence of a prehistoric Native American settlement dated to 6500 BC.