A visitor who saw it called Tevego a place where the very air was one great mass of malaria, where the heat suffocated and the marsh never ended, and where many people would rather sit in a public prison cell than be banished there. That visitor, a Scottish merchant who knew the country well, was not exaggerating much. In 1813, on the malarial northern edge of Paraguay, the dictator José Gaspar Rodríguez de Francia founded a settlement and handed it an impossible job: to hold the frontier against the people, the climate, and the disease that all conspired to destroy it. The families he sent to do it were free Black Paraguayans, asked to risk their lives on the most dangerous ground in the country.
Tevego was the creation of Dr. Francia, the lawyer-turned-dictator who sealed Paraguay off from the world and ruled it as El Supremo from 1814 until his death in 1840. He established the settlement in 1813 and populated it with free people of color, families the records of the era called mulattoes, sending them to defend a stretch of borderland that almost no one else would willingly inhabit. The site lay near where the Argentine and Bolivian frontiers met, surrounded by swamp on one side and the harsh scrub of the Gran Chaco on the other. It was, by design, one of the most exposed and inhospitable positions in the country.
The men and women of Tevego were not curiosities of history; they were free Black Paraguayans asked to risk everything on a frontier the state could barely supply. They built shelters in the branches of trees or from hides and mats, because there was little else. Food came from hunting or from Portuguese traders across the border, and the only protection was a small, ill-disciplined militia. Through it all, they faced repeated raids by the Guaycurú, the formidable Indigenous nations of the Chaco who had never been subdued and who defended their own land fiercely. When the attacks grew too frequent, the original garrison and their families were pulled back to safer settlements nearby.
Once the defenders withdrew, Tevego took on a grimmer role as a prison camp. To it Francia banished men convicted of vagrancy and petty crimes, many of whom volunteered for the hard labor in exchange for shortened sentences, gambling that survival in the swamp would buy back their freedom. It was a brutal bargain on brutal ground. The Scottish merchant John Parish Robertson, who knew Francia and wrote about his rule, recorded the colonists' dread of the place in unsparing detail. As the raids intensified beyond bearing, Francia finally evacuated Tevego altogether, deporting its remaining inmates to prisons in the nearby city of Concepción.
Paraguay was reluctant to let the site die. In 1843, three years after Francia's death, President Carlos Antonio López ordered it resettled, this time under a hopeful new name: Villa del Divino Salvador, the Village of the Divine Savior, later shortened to San Salvador. The optimism did not outlast the geography. The marsh, the heat, and the raids were still there, and the settlement never prospered. During the Paraguayan War of the 1860s, Brazilian forces destroyed it and its people fled, ending the experiment for good. No precise record of Tevego's location survives; a map from 1860 places it roughly 70 miles southwest of San Ignacio, near where the Argentine and Bolivian frontiers meet. Its strongest memorial may be literary. The novelist Augusto Roa Bastos, Paraguay's greatest writer, invokes Tevego again and again in the voice of Francia himself, in his masterwork I, the Supreme, so that a town the maps forgot survives instead in fiction.
Tevego's exact site is lost to history, but it stood in far northern Paraguay near 22.8167 degrees south, 57.7833 degrees west, in the modern Concepción Department, by a 1860 map roughly 70 miles southwest of San Ignacio and close to where the Argentine and Bolivian borders converge. From the air the region reads as a mosaic of marsh, river channels, and the dry scrub of the Gran Chaco's eastern fringe, with few roads or settlements. Recommended viewing altitude is 3,000 to 5,000 feet for a sense of the wetland-and-scrub landscape. The Paraguay River to the east is the main navigation reference. There is no nearby airport of note; the closest significant field is Silvio Pettirossi International (ICAO: SGAS, elevation 292 feet) at Asunción, well to the south. Heat haze and seasonal flooding can obscure the low, watery terrain, especially in summer.