Río Cuarto to Conchillas, Uruguay is about 531 road miles (854 km): roughly 10 h 50 min at the wheel if you don't stop. You cross from Argentina into Uruguay at about mile 424, 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: “Gas stations are often far apart and not always easily identified from the main roadway.”
- Uruguay: “Illumination, pavement markings, and road surfaces for secondary roads can be poor.”
| Total distance | 531 mi (854 km) |
|---|---|
| Drive time without stops | 10 h 50 min |
| Main roads, in order | RN158 → RP C-39 → RN9 → RNA008 → RN174 → RP11 → RN12 → RP16 → RN136 |
| Border crossing | about mile 424, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Córdoba, Santa Fe, Entre Ríos, Río Negro, Soriano, Colonia |
| Fuel estimate (car at 25 mpg) | about 21.2 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
Crossing from Argentina into Uruguay
The route crosses at about mile 424, 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 Río Cuarto to Conchillas drive plays out
RN9 (150 mi) and RN158 (74 mi) carry about 42% of the 531 miles. The first 424 miles are in Argentina; the last 107 are in Uruguay. It runs through 6 regions: Córdoba, Santa Fe, Entre Ríos, Río Negro, Soriano, Colonia. Of the 9 stops listed below, 4 are within a mile of the road.
Which roads connect Río Cuarto and Conchillas
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–4 | 4 | Córdoba |
| connecting roads | 4–6 | 2 | Córdoba |
| RN158 | 6–80 | 74 | Córdoba |
| connecting roads | 80–81 | 1 | Córdoba |
| RP C-39 | 81–89 | 8 | Córdoba |
| connecting roads | 89–92 | 3 | Córdoba |
| RN9 | 92–242 | 150 | Córdoba, Santa Fe |
| RNA008 | 242–248 | 6 | Santa Fe |
| RN174 | 248–285 | 37 | Santa Fe, Entre Ríos |
| RP11 | 285–349 | 64 | Entre Ríos |
| RN12 | 349–354 | 5 | Entre Ríos |
| RP16 | 354–395 | 41 | Entre Ríos |
| local roads | 395–400 | 5 | Entre Ríos |
| connecting roads | 400–403 | 3 | Entre Ríos |
| RN136 | 403–422 | 19 | Entre Ríos |
| connecting roads | 422–424 | 2 | Entre Ríos |
| local roads | 424–443 | 19 | Río Negro, Soriano |
| connecting roads | 443–446 | 3 | Soriano |
| local roads | 446–531 | 85 | Soriano, Colonia |
- Mile 181 of this route: Córdoba → Santa Fe (region line)
- Mile 250 of this route: Santa Fe → Entre Ríos (region line)
- Mile 424 of this route: Entre Ríos → Río Negro (international border)
- Mile 441 of this route: Río Negro → Soriano (region line)
- Mile 495 of this route: Soriano → Colonia (region line)
What to see on the way from Río Cuarto to Conchillas
- Right off the route (under 1 mile): Balneario La Florida (mile 249), Abadía del Niño Dios (mile 285), Gualeguaychú Cathedral (mile 401), Museo Municipal Profesor Roselli (mile 494)
- Nature and outdoors: Balneario La Florida (mile 249), Agraciada Beach (mile 491)
- Museums and history: Gualeguaychú Cathedral (mile 401), Calera Real del Dacá (mile 442), Museo Municipal Profesor Roselli (mile 494), Museo del Carmen (mile 509)
- With kids: Paraná River Aquarium (mile 247)
Paraná River Aquarium
The Paraná River Aquarium in Rosario is a public aquarium built as a scientific and educational center focused on the river.
Balneario La Florida
Rosario's municipal riverside beach area runs nearly 4 kilometers along the Paraná River, from the Rosario-Victoria Bridge to Parque Alem, and dates to around 1940.
Abadía del Niño Dios
Abadía del Niño Dios is a Benedictine monastery in Victoria, Entre Ríos Province. Founded in 1899, it was the first Benedictine foundation in Hispanic America.
Gualeguaychú Cathedral
St. Joseph's Cathedral, also called Gualeguaychú Cathedral, serves as the cathedral church of the Roman Catholic Diocese of Gualeguaychú in Argentina.
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.
Agraciada Beach
On the eastern bank of the Uruguay River in Soriano department, Agraciada Beach is a historic beach area facing Argentina's Entre Ríos province.
Museo Municipal Profesor Roselli
Nueva Palmira's municipal museum, also known as the Museo Roselli, is named for its first director, Professor Francisco Lucas Rosselli.
Teatro Uamá
Teatro Uamá is a theater in the city of Carmelo, in Uruguay's Colonia department, regarded as the town's leading cultural institution.
Museo del Carmen
Facing Plaza Artigas in Carmelo, the Archivo y Museo del Carmen belongs to the local Carmelo parish and holds religious and historical collections.
More drives to Conchillas
- Tacuarembó to Conchillas
- Artigas to Conchillas
- Veinticinco de Agosto to Conchillas
- Fray Marcos to Conchillas
- Minas to Conchillas
- Alejandro Gallinal to Conchillas
More drives from Río Cuarto
- Río Cuarto to Adrogué
- Río Cuarto to Berisso
- Río Cuarto to Magdalena
- Río Cuarto to Chascomús
- Río Cuarto to Villa Unión
- Río Cuarto to Amaicha del Valle
Frequently asked questions
How long does it take to drive from Río Cuarto to Conchillas, Uruguay?
About 10 h 50 min of driving without stops, over 531 miles.
How far is Conchillas, Uruguay from Río Cuarto by car?
About 531 miles (854 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 Río Cuarto to Conchillas drive cross the border?
At about mile 424, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Río Cuarto 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.)
What does the U.S. travel advisory say about the Río Cuarto to Conchillas drive?
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 Río Cuarto to Conchillas use?
In order: RN158, RP C-39, RN9, RNA008, RN174, RP11, RN12, RP16 and RN136. The road-by-road table above shows the route miles for each one.
What are good stops between Río Cuarto and Conchillas?
Closest to the road: Abadía del Niño Dios (monastery, mile 285, 0.6 mi from the route); Gualeguaychú Cathedral (cathedral, mile 401, 0.8 mi from the route); Museo Municipal Profesor Roselli (museum, mile 494, 0.8 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.