The photographic collection as a whole, consisting of 249 positives, 135 negatives, and 335 slides, almost all from the province of Guadalajara (whose authorship is shared by the couple, although most of the clichés must be attributed to Rosario, closer to the professional field and member of the Agrupación Fotográfica de Guadalajara) reveals the interest of the couple, especially Francisco, in documenting the towns and enclaves of the Alcarria Baja region and their modern hydrological infrastructures, a source of wealth and promise of tourist development.