Spanning more than four hundred years, The Guatemala Collection: Government and Church Documents for Sacatepéquez (1587-1991) concentrates primarily on the national era, particularly 1824-1948. The vast majority of the documents - correspondence, annual reports, statistics, letters, litigation - found within The Guatemala Collection are copies from the Archivo General de Centroamérica and the Archivo Histórico Arquidiocesano "Francisco de Paula García Peláez" (formerly known as Archivo Eclesiástico de Guatemala) in Guatemala City. In recent years, the latter has seldom been opened to the public. Colonial documents mainly come from the Archivo General de Indias in Seville, Spain. A few of the documents and transcripts come from the Centro de Investigaciones Regionales de Mesoamérica (CIRMA) in Antigua. In general, the documents are organized by place, theme, and chronology.