RailPictures.Net Photo: Unknown Sociedad Operadora Ferroviaria Sociedad del Estado (S.O.F.S.E.) Railcar at Buenos Aires, Argentina by Alejandro Goldemberg
Trains from Constitución to mar del Plata are cancelled until tracks renewal are finished, so this is the only material I could see along the 250-mile trajectory. This location is PKM 190, between Sevigné and Dolores station