By road, Pergamino and Fray Marcos, Uruguay are about 432 miles (696 km) apart, or roughly 9 h 5 min of driving. You cross from Argentina into Uruguay at about mile 214, at the Gualeguaychú–Fray Bentos bridge.
Full advisory: Argentina, Uruguay. Advisory issued: Argentina July 10, 2026; Uruguay July 28, 2026; checked October 10, 2026.
On the roads, the State Department says:
- Argentina: “Drivers in Argentina tend to be aggressive, especially in Buenos Aires, and often ignore traffic regulations.”
- Uruguay: “Several of the main highways are particularly accident-ridden.”
| Distance by road | 432 mi (696 km) |
|---|---|
| Time at the wheel, no stops | 9 h 5 min |
| Main roads, in order | RN8 → RN193 → RN12 → RN14 → RN136 |
| Border crossing | about mile 214, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Florida |
| Fuel estimate (car at 25 mpg) | about 17.3 gal; actual use varies by vehicle and traffic |
| Stops listed below | 8 |
Getting across the Argentina–Uruguay border
The route crosses at about mile 214, at the Gualeguaychú–Fray Bentos bridge, from Entre Ríos into Río Negro. Plan on two checks on each side: immigration for your passport and customs for the car.
| Entering Uruguay (U.S. citizens) | No visa needed for visits of 90 days or less. Passport: must be valid for 6 months beyond your arrival date. |
|---|---|
| Driving in Uruguay | You can drive on your U.S. license. |
| Entering Argentina (U.S. citizens) | No visa needed for visits of 90 days or less. Passport: must be valid when you enter; leave a blank page for the entry and exit stamps. |
| Driving in Argentina | A valid U.S. license usually works; an International Driving Permit is recommended. |
| Rental car | Cross only if the rental company authorizes it in writing and gives you the papers for the border; ask before you book. |
Sources: U.S. State Department, Uruguay (updated August 13, 2026); U.S. State Department, Argentina (updated July 16, 2026). Checked October 10, 2026; rules change, so confirm before you go.
How the Pergamino to Fray Marcos drive plays out
RN8 (76 mi) and RN12 (50 mi) carry about 29% of the 432 miles. The first 214 miles are in Argentina; the last 218 are in Uruguay. It runs through 8 regions: Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Florida. Of the 8 stops listed below, 4 are within a mile of the road.
Which roads connect Pergamino and Fray Marcos
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–4 | 4 | Buenos Aires |
| RN8 | 4–80 | 76 | Buenos Aires |
| connecting roads | 80–81 | 1 | Buenos Aires |
| RN193 | 81–100 | 19 | Buenos Aires |
| RN12 | 100–150 | 50 | Buenos Aires, Entre Ríos |
| RN14 | 150–186 | 36 | Entre Ríos |
| local roads | 186–193 | 7 | Entre Ríos |
| RN136 | 193–212 | 19 | Entre Ríos |
| connecting roads | 212–214 | 2 | Entre Ríos |
| local roads | 214–311 | 97 | Río Negro, Soriano |
| connecting roads | 311–312 | 1 | Soriano |
| local roads | 312–349 | 37 | Colonia, San José |
| connecting roads | 349–351 | 2 | San José |
| local roads | 351–395 | 44 | San José, Canelones |
| connecting roads | 395–398 | 3 | Canelones |
| local roads | 398–432 | 34 | Canelones, Florida |
- Mile 120 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 214 of this route: Entre Ríos → Río Negro (international border)
- Mile 231 of this route: Río Negro → Soriano (region line)
- Mile 312 of this route: Soriano → Colonia (region line)
- Mile 329 of this route: Colonia → San José (region line)
- Mile 373 of this route: San José → Canelones (region line)
- Mile 431 of this route: Canelones → Florida (region line)
What to see on the way from Pergamino to Fray Marcos
- Right off the route (under 1 mile): Parque Criollo y Museo Gauchesco Ricardo Gu͏̈iraldes (mile 69), Cathedral of San José de Mayo (mile 349), Museo Departamental de San José (mile 349), Cathedral of Our Lady of Guadalupe (mile 383)
- Nature and outdoors: Ciervo de los Pantanos National Park (mile 103)
- Museums and history: Parque Criollo y Museo Gauchesco Ricardo Gu͏̈iraldes (mile 69), Gualeguaychú Cathedral (mile 192), Alejandro Berro Paleontology Museum (mile 229), Calera Real del Dacá (mile 232), Cathedral of San José de Mayo (mile 349), Museo Departamental de San José (mile 349), Cathedral of Our Lady of Guadalupe (mile 383)
Parque Criollo y Museo Gauchesco Ricardo Gu͏̈iraldes
In San Antonio de Areco, Buenos Aires province, the Museo Gauchesco Ricardo Güiraldes spreads ten exhibit rooms across the 97-hectare Parque Criollo, opened in 1938, and presents Argentina's past, especially that of Buenos Aires province.
Ciervo de los Pantanos National Park
Marsh deer give their name to Ciervo de los Pantanos National Park, a Ramsar Site in Campana, Buenos Aires province, where waterbirds are abundant.
Gualeguaychú Cathedral
St. Joseph's Cathedral, also called Gualeguaychú Cathedral, is the mother church of the Roman Catholic Diocese of Gualeguaychú in Argentina.
Alejandro Berro Paleontology Museum
In a 19th-century building in Mercedes' Parque Castillo Mauá, this paleontology museum opened in 1946 around the collection of naturalist Alejandro Berro; a well-preserved glyptodon shell found on a nearby riverbank is a highlight.
Calera Real del Dacá
On the eastern edge of Mercedes beside the Dacá stream, the ruins of the Calera Real lime works date to 1722 and are considered the region's first industrial site; recent works added visitor circuits, lighting and interpretive signs.
Cathedral of San José de Mayo
The main Catholic church of San José de Mayo, the Cathedral Basilica of St. Joseph has been the diocesan seat since 1955, a minor basilica since 1957 and Uruguay's national shrine of Saint Joseph.
Museo Departamental de San José
Set in central San José de Mayo, the Museo Departamental de San José is a history and fine arts museum that also runs a library, archives and cultural programs.
Cathedral of Our Lady of Guadalupe
Construction of Canelones' Cathedral of Our Lady of Guadalupe began in 1816; the church became a cathedral in 1961 and Uruguay's national shrine of Our Lady of Guadalupe in 2020.
More drives to Fray Marcos
- Nueva Helvecia to Fray Marcos
- Colonia del Sacramento to Fray Marcos
- Carmelo to Fray Marcos
- Paysandú to Fray Marcos
- Rivera to Fray Marcos
- Salto to Fray Marcos
More drives from Pergamino
- Pergamino to Adrogué
- Pergamino to Berisso
- Pergamino to Magdalena
- Pergamino to Chascomús
- Pergamino to Sierra de La Ventana
- Pergamino to Capilla del Monte
Frequently asked questions
How long is the drive from Pergamino to Fray Marcos, Uruguay?
About 9 h 5 min of driving without stops, over 432 miles.
What is the driving distance from Pergamino to Fray Marcos, Uruguay?
About 432 miles (696 km) on the Wayro route. Other map services may show a few miles more or less, depending on where they start and end in each city.
Where does the Pergamino to Fray Marcos drive cross the border?
At about mile 214, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Pergamino into Uruguay?
No visa needed for visits of 90 days or less. Passport: must be valid for 6 months beyond your arrival date. You can drive on your U.S. license. (U.S. State Department, updated August 13, 2026.)
Is it safe to drive from Pergamino to Fray Marcos, Uruguay?
The U.S. State Department rates Argentina Level 1: Exercise Normal Precautions; Uruguay Level 2: Exercise Increased Caution. Read the full advisory before you go.
What roads does the drive from Pergamino to Fray Marcos use?
In order: RN8, RN193, RN12, RN14 and RN136. The road-by-road table above shows the route miles for each one.
Where can you stop on the way from Pergamino to Fray Marcos?
Closest to the road: Parque Criollo y Museo Gauchesco Ricardo Gu͏̈iraldes (museum, mile 69, 0.6 mi from the route); Museo Departamental de San José (history museum, mile 349, 0.7 mi from the route); Cathedral of Our Lady of Guadalupe (cathedral, mile 383, 0.2 mi from the route). All stops are described above.
How we put this guide together
Wayro calculates the route from OpenStreetMap road data; mile numbers are positions along this route, not highway markers, and "from the route" distances are straight-line, so the real detour depends on access roads. Stops are chosen from parks, natural sites, museums, historic sites and attractions close to the route: at least one strong stop for each stretch of the drive, then the best-known places nearest the road, up to nine in all. Places that are closed, private or not open to visitors are removed. Place descriptions are written by the Wayro team from official park, museum, tourism and government websites and other published sources. Safety levels and entry rules were checked against the U.S. Department of State on October 10, 2026. Conditions change, so check the linked sources before you travel.
Route data © OpenStreetMap contributors.