Cerro del Monje, above the Argentine bank of the Uruguay River near San Javier, became a place of pilgrimage associated with an Italian religious wanderer. Nineteenth- and early twentieth-century sources record a cross, requests for healing and stories about exceptional discoveries on the hill. Comparing the originals reveals an important difference: João Pedro Gay’s 1863 account describes a story about gold pebbles, while Juan B. Ambrosetti’s 1917 account describes miraculous water.
Gay’s earlier description
In História da República Jesuítica do Paraguay (1863), page 345, Gay discusses San Francisco Xavier, the former mission settlement now associated with San Javier. North of the settlement, he identifies a hill called Cerro do Monge. He says a celebrated Italian monk associated with the holy waters of Santa Maria da Bocca do Monte took refuge there late in 1852.
Gay says the man ordered a wooden cross to be raised. He then attributes a particular story to popular report: small pieces or pebbles of gold were found while the ground was being dug for the cross. The passage is not an assay report or an eyewitness description of a supernatural event. Its attribution matters because Gay is recording what people said.
He also describes neighbours making pilgrimages to the hill, including people from São Borja seeking relief from illnesses. Promises to the cross were made for other purposes too, including winning racing wagers. Thus the early description already records a devotional place and varied hoped-for benefits. It does not document that a recovery from illness or success in a race was caused by the cross.
The later miraculous-water account
Ambrosetti’s Supersticiones y leyendas (1917), pages 119–123, places Cerro del Monje roughly a league north of the old San Javier reduction and opposite the Brazilian Cerro Pelado area. He describes a simple wooden chapel within a circle of palms on the summit. His chapter belongs to a collection of places with legends, rather than a clinical or geological investigation.
He cites Gay’s 1863 work when introducing an Italian monk’s refuge in 1852. In his version, however, water emerged from the hole dug while the monk was trying to plant a cross. That water, he says, became the object of pilgrimages by people hoping for cures. This is the celebrated spring version, but it is not the same detail as the gold-pebble story in the earlier passage.
The comparison does not by itself establish why the versions differ. It could reflect another strand of oral tradition or a change in retelling; the reviewed texts do not settle that question. It would be misleading to cite Gay as though his San Xavier passage independently described the same water-emergence event in identical terms.
The spring and the way it was used
Ambrosetti gives unusually concrete details about the devotional setting. About twenty metres west of the chapel, he describes a cylindrical hole in a large stone, approximately fifteen centimetres across, containing water to a depth of forty centimetres. A clay roof tile covered it, with two tin mugs resting above. These are his recorded dimensions and arrangement, not a present-day survey.
The associated practice required the person seeking a drink to ask a companion for water for the love of God. Ambrosetti reports a belief that the water would otherwise have no effect. A nearby waterfall, described as about four metres high, was also used for bathing by people who could manage it. The ritual joined landscape, spoken request and bodily action.
The chapter attributes broad curative power to what people said about the water. It supplies no medical diagnoses, independently checked before-and-after records, comparison group, chemical analysis or test demonstrating healing efficacy. Recording the tradition does not turn the spring into a verified treatment or establish that its water is suitable to drink today.
A pilgrimage across the river border
According to Ambrosetti, Holy Week brought the largest pilgrimages. People came from Brazilian communities including São Luís, São Borja and São Nicolau. Their offerings supported an annual repainting of the chapel. His description therefore concerns a cross-border devotional network, not simply a solitary man’s alleged act on an isolated hill.
He says there was no resident priest directing those practices in the setting he described. That is a historical observation in his account; it is not a statement about the site’s present pastoral arrangements. Nor should it be read as proof either of official religious recognition or of the alleged miracles.
Ambrosetti’s own tone towards the devotees is dismissive, calling practices superstitious or ridiculous. Those judgements reflect the collector’s perspective. They are not evidence that the participants were incapable of describing their religious lives, and they should not replace careful distinctions between a practice, a reported benefit and a tested causal claim.
Objects and offerings in the chapel
Inside, Ambrosetti describes a rough altar and a kneeling wooden figure of the Lord of the Deserts, about seventy centimetres high despite its bent posture, with a Virgin Mary figure nearby. He thought their workmanship showed that they came from the old San Javier Jesuit ruins. The chapter does not reproduce an inventory or provenance document proving that attribution.
A covered human skull was believed to belong to the original monk. Belief in that identity is what the source records: there is no described identification procedure. The skull should not be presented as a scientifically authenticated relic, and the later photograph of the hill does not establish the identity or survival of any particular historical object.
Offerings included candles, paper ornaments, ribbons and wax representations such as hands and feet. Newly married couples were said to pray there, after which the bride left her wedding dress and orange-blossom decorations on the saint’s figure. New dresses were placed over old ones, with roughly ten layers described, in hope of lasting happiness in the household.
The boatmen’s promises
The account also describes workers and canoe men visiting before travelling upstream. They drank water, lit candles and prayed. If a companion omitted the observance and the canoe later struck rocks or met another difficulty, some travellers interpreted the mishap as the consequence of neglecting the monk.
This passage shows how the shrine could enter the practical anxieties of river travel. It does not demonstrate a causal relationship between ritual observance and a boat’s safety. Ambrosetti credits many details to his friend Juan Queirel, a surveyor. That acknowledgement should remain visible: not every detail in the chapter is established as the collector’s own direct observation.
What the sources support
The outcome is Insufficient evidence for the supernatural claims. Gay and Ambrosetti preserve a traceable history of pilgrimage, offerings and hopes of healing. Their differing cross-planting stories are part of that history. Neither provides a controlled demonstration of miraculous water, authenticated gold discovery or a causal test of the benefits attributed to the shrine.
The incident-year filter records 1852 as the expressly attributed origin period in both historical accounts, with Gay specifying late in that year. It does not date every later pilgrimage or offering to 1852. The exact dates of the spring story and the practices collected by Ambrosetti remain unassigned; 1863 and 1917 are publication years.
The hill reference
The map uses an approximate Cerro del Monje hill reference, −27.82, −55.10, rounded from GeoNames 3430615 in San Javier, Misiones. It marks the relevant hill area, not a surveyed position for the historical spring, chapel or buried relic. Argentina’s bank of the Uruguay River is intended, rather than a similarly named Mexican hill or a Brazilian shrine.
The official Misiones tourism information system lists Cerro Monje among San Javier’s attractions. That confirms its recognised geographical and cultural setting. This historical article does not provide verified current opening arrangements or access conditions, so it does not enable a current public-place visitor listing.