Explore details about location Prol. Osa Mayor. Prol. Osa Mayor is a location situated within the Aguascalientes alongside other areas such as De los Milagros, Francisco Lopez Medrano, G. Bocanegra. Additionally, some smaller parts of Prol. Osa Mayor include specific areas like Tauro, Jose Antonio Velarde, Humberto Bravo Sanchez adding to the diversity of its landscape.