United States, 39.76, -98.5Stanley Hutchinson1850/2025Steam locomotive passing ballast pile. Track ballast is the material which forms the trackbed upon which railroad ties are laid. It is packed between, below, and around the ties. It is used to bear the compression load of the railroad ties, rails, and rolling stock; to facilitate drainage; and keep down vegetation that can compromise the integrity of the combined track structure.image/jpegLeGrange, Ga. : Troup County Archiveshttp://rightsstatements.org/vocab/InC-EDU/1.0/Troup County (Ga.)Photograph collections--Georgia--Troup CountyLaGrange (Ga.)--Social life and customsSteam LocomotiveStillImage