Municipality of the north coast of the island known as the "Villa del Capitán Correa", in honor of the heroic gestation of Antonio de los Reyes Correa, who defended the Villa of Arecibo from the attack of the English in 1702. The Spanish crown awarded him the Royal Effigy medal and promoted him to captain. This village, of flat lands has a territorial extension of 127 square miles. Its lands are part of the area of the carso, characterized by the presence on its surface of caves, sinks and mogotes. Arecibo has 100,131 inhabitants, according to the 2000 federal census, and is divided into 19 neighborhoods: Arecibo village, Arenalejos, Arrozal, Cambalache, Carreras, Domingo Ruiz, Dominguito, Esperanza, Factor, Garrochales, Hato Abajo, Hato Arriba, Hato Viejo, Islote, Miraflores, Rio Arriba, Sabana Hoyos, Santana and Tanamá. The Areceives celebrate several festivities during the year, among which are the patron saint festivities in honor of the Apostle San Felipe in April and the Carnival in February. In addition, Arecibo is distinguished by the traditional celebration of the Festival del Cetí at the end of November. The cetí is a tiny fish that is usually caught at the mouth of the Arecibo River on the waning moon of July and the consequent waning until it reaches January. Occasionally, these small fish can form a conglomeration that can be 25 to 30 meters long. Thanks to this fish Arecibo is also known as the "City of The Cetí". Arecibo has the largest radio telescope in the world. The giant concrete, aluminum and steel structure rises 565 feet above the mountains of the Esperanza neighborhood. It was built by the U.S. Corps of Engineers at an initial cost of $nine million. It was inaugurated in November 1963 under the direction of Prof. William E. Gordon of the School of Electrical Engineering at Cornell University. The geographical position of the people — approximately 18 degrees north of the equator — turns out to be an ideal location for observation of the sun and planets. The radio-radar telescope allows the capture of signals from celestial objects arriving from the farthest reaches of the universe, as well as scientific research on climate change. Arecibo played an important role as a producer in Puerto Rico's rum industry, as it housed The Puerto Rico Distilling, founded in 1911. The company produced rum and other distilled spirits and sold them to other corporations in the country. Then, at the time of the ban, he devoted himself to the production of ethyl alcohol and alcohol-alcoholed Superior 70. Over time, many of the land belonging to this company was purchased by the government of Puerto Rico to carry out housing projects. Currently, Arecibo has several industries related to the production of textiles, chemicals and electrical equipment, among others. Service industry, trade and agriculture persist in the people's economy, as does fishing.