1811. On October 2, 1896, Ulises Heureaux reorganized the city of San Francisco de Macorís under Provincial District "Pacificador" (Peacemaker). At that time it was assigned as common to Cantonal Position of Matanzas, Section Monte Abajo, Villa Riva, Canton Castillo, among others. District Pacificador's name lasted until July 26, 1926, when the Dominican Congress changed its name to Duarte Province, presently used. On 20 May 1963 the city council approved the renaming of the main streets of San Francisco de Macorís at the request of the Foundation Heroes of Constanza, Maimon and Estero Hondo. Geography The city of San Francisco de Macorís is located in the North Region of the Dominican Republic (Cibao Region) between the Septentrional Mountain Range at the north and the Cibao Valley at the southern part. San Francisco de Macorís has hills to the north which provide a great view of the city during evening hours. The Jaya River is prominent on the western part of town. Relief The relief of Duarte Province ranges from above sea level, reaching its highest elevation at "Loma Quita Espuela". This name allegedly comes from the time when the Spaniards were exploring the island, since the hill was too steep to ride their horses, they had to dismount and remove their spurs and undertake the ascent on foot. There are two main geologic regions: the north slope of the Cordillera Septentrional and the rough topography of the Delta del Yuna. On the southern slope of the Cibao Valley in the Yuna Subregion (Easter Cibao), we will find alluvial fans, in combination with deposit hollows, hill areas and platforms, and also alluvial soils into the channels of the flows of the rivers Camú and Yuna. Two faults go through the Duarte Province from east to west. This tectonic deformations are the Septentrional fault, that touches the towns of Arenoso, Castillo and San Francisco de Macorís and the Cibao fault passing through the towns of Las Guaranas, Castillo, Villa Riva Pimentel. The Septentrional fault is located in the northern part of the province while the Cibao fault is located in the southern part of it. Geomorphology Yuna River Delta. It is part of the Cibao Valley, and most of these areas are located a few metres above sea level and therefore wetlands abound. Its main rivers are the Great Yuna and Caño Estero, which is the natural drainage of these lands in