By road, Chascomús and Fray Marcos, Uruguay are about 462 miles (743 km) apart, or roughly 9 h 43 min of driving. You cross from Argentina into Uruguay at about mile 244, 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 | 462 mi (743 km) |
|---|---|
| Time at the wheel, no stops | 9 h 43 min |
| Main roads, in order | RP2 → RN1 → AV1-N → RN9 → RP6 → RN12 → RN14 → RN136 |
| Border crossing | about mile 244, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Buenos Aires, Ciudad de Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Florida |
| Fuel estimate (car at 25 mpg) | about 18.5 gal; actual use varies by vehicle and traffic |
| Stops listed below | 8 |
Getting across the Argentina–Uruguay border
The route crosses at about mile 244, 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.
The Chascomús–Fray Marcos drive in a few lines
RP2 (55 mi) and RN12 (47 mi) carry about 22% of the 462 miles. The first 244 miles are in Argentina; the last 218 are in Uruguay. It runs through 9 regions: Buenos Aires, Ciudad de Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Florida. Of the 8 stops listed below, 6 are within a mile of the road.
The route from Chascomús to Fray Marcos, road by road
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–4 | 4 | Buenos Aires |
| RP2 | 4–59 | 55 | Buenos Aires |
| connecting roads | 59–60 | 1 | Buenos Aires |
| RN1 | 60–76 | 16 | Buenos Aires, Ciudad de Buenos Aires |
| local roads | 76–80 | 4 | Ciudad de Buenos Aires |
| AV1-N | 80–85 | 5 | Ciudad de Buenos Aires |
| connecting roads | 85–88 | 3 | Ciudad de Buenos Aires |
| RN9 | 88–127 | 39 | Buenos Aires |
| RP6 | 127–132 | 5 | Buenos Aires |
| RN12 | 132–179 | 47 | Buenos Aires, Entre Ríos |
| RN14 | 179–216 | 37 | Entre Ríos |
| local roads | 216–222 | 6 | Entre Ríos |
| RN136 | 222–241 | 19 | Entre Ríos |
| connecting roads | 241–244 | 3 | Entre Ríos |
| local roads | 244–341 | 97 | Río Negro, Soriano |
| connecting roads | 341–342 | 1 | Soriano |
| local roads | 342–378 | 36 | Colonia, San José |
| connecting roads | 378–381 | 3 | San José |
| local roads | 381–424 | 43 | San José, Canelones |
| connecting roads | 424–427 | 3 | Canelones |
| local roads | 427–462 | 35 | Canelones, Florida |
- Mile 72 of this route: Buenos Aires → Ciudad de Buenos Aires (region line)
- Mile 88 of this route: Ciudad de Buenos Aires → Buenos Aires (region line)
- Mile 150 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 244 of this route: Entre Ríos → Río Negro (international border)
- Mile 260 of this route: Río Negro → Soriano (region line)
- Mile 342 of this route: Soriano → Colonia (region line)
- Mile 359 of this route: Colonia → San José (region line)
- Mile 403 of this route: San José → Canelones (region line)
- Mile 460 of this route: Canelones → Florida (region line)
Where to stop on the way to Fray Marcos
- Right off the route (under 1 mile): Evita Museum (mile 81), Eduardo Sívori Museum (mile 82), Temaikèn (mile 111), Cathedral of Mercedes (mile 262), Museo Departamental de San José (mile 378), Cathedral of Our Lady of Guadalupe (mile 413)
- Museums and history: Evita Museum (mile 81), Eduardo Sívori Museum (mile 82), Cathedral of Mercedes (mile 262), Museo Departamental de San José (mile 378), Cathedral of Our Lady of Guadalupe (mile 413)
- With kids: Temaikèn (mile 111)
Teatro Liceo
Recognized by the city as the oldest theater still standing in Buenos Aires, Teatro Liceo sits at the corner of Rivadavia Avenue and Paraná Street in Montserrat.
Evita Museum
In Palermo, Buenos Aires, at 2988 Lafinur Street, the Evita Museum covers the life and legacy of Eva Duarte de Perón and her work through the Eva Perón Foundation.
Eduardo Sívori Museum
Named after painter Eduardo Sívori, this municipal museum of plastic arts in Buenos Aires opened in 1938.
Temaikèn
Temaikèn is a zoo in Belén de Escobar, outside Buenos Aires, and the only zoo in Argentina accredited by the Association of Zoos and Aquariums.
Frigorífico Anglo del Uruguay
Liebig exported meat extract and corned beef from this spot on the Uruguay River at Fray Bentos starting in 1865. In 1924, the Anglo plant began shipping frozen meat from the same site.
Cathedral of Mercedes
Dedicated to Our Lady of Mercy, this cathedral is the main Catholic church of Mercedes, Uruguay, and has been the seat of the Diocese of Mercedes since 1960.
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 Chascomús
- Chascomús to Tigre
- Chascomús to San Antonio de Areco
- Chascomús to Arrecifes
- Chascomús to Martínez
- Chascomús to Mercedes, Argentina
- Chascomús to Artigas, Uruguay
Frequently asked questions
How long does it take to drive from Chascomús to Fray Marcos, Uruguay?
About 9 h 43 min of driving without stops, over 462 miles.
How far is Fray Marcos, Uruguay from Chascomús by car?
About 462 miles (743 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 Chascomús to Fray Marcos drive cross the border?
At about mile 244, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Chascomús 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 Chascomús 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.
Which highways go from Chascomús to Fray Marcos?
In order: RP2, RN1, AV1-N, RN9, RP6, RN12, RN14 and RN136. The road-by-road table above shows the route miles for each one.
What are good stops between Chascomús and Fray Marcos?
Closest to the road: Eduardo Sívori Museum (art museum, mile 82, 0.4 mi from the route); Temaikèn (zoo, mile 111, 0.6 mi from the route); Cathedral of Our Lady of Guadalupe (cathedral, mile 413, 0.1 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.