OBRA #9, MAYTORENA, SONORA. 7.- Equipo De Excavacion y acarroo a base Tractor EE-20, trabajando sobre el Bordo de Ortis. Guaymas, Sonora, Julio 16 de 1957. GUAYMAS VALLEY PROJECT. Scraper loading at borrow pit.
Click tabs to swap between content that is broken into logical sections.
Digital Image Copyright 2010. Materials may be used for non-profit and educational purposes, please credit the Special Collections Department, Stewart Library, Weber State University.