63. Curved road cut out of rock; print captioned "Auto Road. Balsas to Chilpancingo, State of Guerrero."

63. Curved road cut out of rock; print captioned "Auto Road. Balsas to Chilpancingo, State of Guerrero.", Box: 1. James E. Long Photograph Collection, 352928987. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/416784 Accessed September 27, 2026.