Pulaski County in 1856, as the Virginia and Tennessee brought the first railroad to Southwest Virginia
Source: Library of Congress, Map & profile of the Virginia & Tennessee Rail Road (William Willis Blackford, 1856)
in 2015, the Hoover Color Corp donated its Pulaski County iron oxide mine (which was once the source of pigment for paints and Crayola crayons) for an extension of the New River Trail State Park bike trails
Map Source: ESRI, ArcGIS Online