🇦🇷 Argentina · The Northeast
Mercedes is one of the key cities of central Corrientes and a crossroads in more than one sense. On one hand, it is the main overland gateway to the Esteros del Iberá, the great Corrientes wetland: the road to Colonia Carlos Pellegrini, the tourist heart of the wetlands, starts here. On the other, a few kilometers away stands the shrine of the Gauchito Gil, the most important center of popular devotion in Argentina, where hundreds of thousands of the faithful make a pilgrimage every year.
The city itself is a typical inland Corrientes town: quiet, with tree-lined streets, its plaza, its historic buildings and deep roots in gaucho and Guaraní tradition. This is chamamé country, land of mate, chipá and warm hospitality. But what puts it on the traveler's map is that double status as gateway to the Iberá and capital of faith in the Gauchito Gil, a figure who sums up much of the country's popular religiosity.
This guide covers the essentials of Mercedes with a practical, warm eye: what the city is like, how to visit the Gauchito Gil shrine and understand the phenomenon, how to organize the trip to the Iberá from here, where to eat and sleep, and how to get around. Mercedes is at once a destination of popular faith and the antechamber to one of the great natural wonders of the Litoral.
Mercedes was founded in 1832 in central Corrientes, on land with a long Guaraní presence and later given over to cattle estancias. It grew as a farming and ranching center and a communications hub of the provincial interior. Its national fame is tied above all to the figure of the Gauchito Gil (Antonio Mamerto Gil Núñez), a local gaucho turned folk saint after his death (according to tradition, on January 8, 1878), whose shrine, on RN 123 near the city, draws crowds of devotees, especially every January 8. Mercedes is also the historic gateway to the Esteros del Iberá. The full story is on our history page.
Read the full history ↓Founded in 1588 as San Juan de Vera de las Siete Corrientes, it is the most Guaraní and most federalist province in Argentina: cradle of chamamé, declared Intangible Cultural Heritage of Humanity, setting of the outbreak of the War of the Triple Alliance and home of the Esteros del Iberá, where the jaguar roars again after seventy years.
Read the history of Corrientes →No exact prices: a scale from $ (budget) to $$$$$ (luxury), with 2-3 options per category.
Origins, formation and what the sources say.
On any Argentine road, from La Quiaca to Ushuaia, sooner or later a little red altar appears with flags flapping in the wind. All those thousands of altars point, like a compass of faith, to one place: a spot eight kilometers from Mercedes, in the center of Corrientes province. But before it became the capital of Argentine popular devotion, this town was simply 'el Paiubre', a corner of open fields, wetlands and scrub on old Guaraní land, where cattle were everything.
Its founding was a victory for stubborn locals. In 1825, a group of residents asked for permission to found a town beside the Paiubre stream; the request went nowhere and they tried again in 1829, until on August 19 of that year the provincial government ordered a site chosen for the settlement. It was definitively created in 1832, under the government of Pedro Ferré, on 100 hectares donated by don José María Gómez. Since no decree fixes the exact date, Mercedes celebrates its anniversary every July 5, the day in 1832 when Nuestra Señora de las Mercedes was solemnly proclaimed patron saint of the fledgling settlement. The present name was confirmed with the blessing of its church, on July 23, 1835, though people in Corrientes still fondly call Mercedes 'the land of the Paiubre'.
The town grew as a service center and a communications hub of the Corrientes interior, articulating the movement of the region's big cattle estancias. Its layout, around a central plaza with the church and the public buildings, follows the classic model of inland Argentine towns. And its identity combines Guaraní roots — present in the language, the place names and the culture — with the gaucho tradition of the fields: chamamé, mate and tereré, crafts and food with Guaraní roots (chipá, mbeyú, river fish) are all part of the local soul. On that rural, traditional bedrock would grow the phenomenon that gave Mercedes its national fame: devotion to the Gauchito Gil.
The figure that made Mercedes famous across Argentina is the Gauchito Gil, whose name was, according to tradition, Antonio Mamerto Gil Núñez. The popular account describes him as a Corrientes gaucho of the second half of the 19th century, in an era of civil wars and forced conscription. There are many versions of his life: some present him as a persecuted farmhand, others as a kind of generous bandit who robbed the rich to help the poor, or as a deserter who refused to take part in fratricidal fighting.
The core of the legend is his death, which tradition dates to January 8, 1878. According to the story, Antonio Gil was captured and executed — his throat cut — hanging from a tree, near Mercedes. Before dying, he is said to have told his executioner that if he prayed in his name, his sick son would be saved. The executioner, on returning home to find his son gravely ill, is said to have invoked the Gauchito and the boy was miraculously cured. Grateful, he gave him a Christian burial and began spreading word of his miraculous power. That is how the devotion was born.
Since then, faith in the Gauchito Gil has never stopped growing, spreading from Corrientes across the country and beyond. Although the Catholic Church does not officially recognize him as a saint, the Gauchito has become one of the most venerated folk saints in Argentina, a symbol of the popular religiosity of the poor. His color is red, and people ask him for favors of every kind and thank him for them. The small red altars at the side of Argentine roads, everywhere you look, are living proof of a devotion whose epicenter lies a few kilometers from Mercedes.
Over the decades, the site tied to the death of the Gauchito Gil, on what is now National Route 123 near Mercedes, turned into a popular shrine of extraordinary scale. Chapels, altars and structures were added that today overflow with offerings: red flags and cloths, plaques of thanks, photos, candles, shirts, toys and every kind of object left by the faithful in fulfillment of a promise. The shrine is a striking visual and cultural phenomenon, with red dominating everything.
The great pilgrimage takes place every January 8, the anniversary of the Gauchito's death, when hundreds of thousands of pilgrims from all over the country converge on the shrine in a mass celebration, with music, food, stalls and an intense atmosphere of faith and festivity. It is one of the largest expressions of popular religiosity in Argentina, and for a few days it turns Mercedes into the spiritual center for thousands of believers.
But Mercedes has another historic role too: gateway to the Esteros del Iberá. From the town runs the road to Colonia Carlos Pellegrini, the village on the shore of the Iberá lagoon that is the tourist heart of the great Corrientes wetland. For a long time this was the main overland access to the wetlands, and Mercedes worked as a base and service point for travelers heading into one of the most extraordinary ecosystems in South America. So the town brings together two worlds: the most fervent popular faith in the country and the antechamber to one of its great natural wonders, at a crossroads that defines its identity.
From the 1990s onwards, the Esteros del Iberá went through a deep transformation that would also change the role of Mercedes as its gateway. The creation of the Iberá Provincial Nature Reserve (1983) and, above all, the arrival of large-scale conservation projects — driven by the Conservation Land Trust of the American philanthropist Douglas Tompkins and, later, by Fundación Rewilding Argentina — put the wetland at the center of worldwide attention.
These projects bought vast stretches of land, took them out of cattle ranching and launched an ambitious rewilding program, reintroducing species that had disappeared from the region: the giant anteater, the pampas deer, the collared peccary, the red-and-green macaw and, most emblematically, the jaguar, the great South American cat, reintroduced to the Iberá after decades of local extinction. In 2018 the land donation that gave rise to Iberá National Park was completed, adding to the provincial park and forming one of the country's most important protected areas.
That environmental revival drove strong growth in nature tourism, with Colonia Carlos Pellegrini as its epicenter and Mercedes as its gateway. The town, known for decades mainly for the Gauchito Gil and its ranching tradition, thus established itself as the base for an ecotourism destination with international reach. Today Mercedes brings together those layered identities: old Guaraní and gaucho land, the most fervent popular faith in Argentina, and the antechamber to one of the great wildlife sanctuaries of South America.