Plan on about 8 h 15 min of driving for the 416-mile (669 km) trip from Tafí Viejo to Villa Unión, before any stops.
Full advisory: Argentina. Advisory issued: Argentina July 10, 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.”
| Distance | 416 mi (669 km) |
|---|---|
| Driving time, no stops | 8 h 15 min |
| Main roads, in order | RN9 → RN38 → RN1V38 → RN150 → RN76 |
| Provinces on the route | Tucumán, Catamarca, La Rioja |
| Fuel estimate (car at 25 mpg) | about 16.6 gal; actual use varies by vehicle and traffic |
| Stops listed below | 6 |
On the road from Tafí Viejo to Villa Unión
RN38 (227 mi) and RN76 (72 mi) carry about 72% of the 416 miles. It runs through 3 provinces: Tucumán, Catamarca, La Rioja. Of the 6 stops listed below, 1 are within a mile of the road.
Which roads connect Tafí Viejo and Villa Unión
| Road | Route miles (from–to) | Length, mi | Province |
|---|---|---|---|
| local roads | 0–4 | 4 | Tucumán |
| RN9 | 4–16 | 12 | Tucumán |
| RN38 | 16–30 | 14 | Tucumán |
| RN1V38 | 30–75 | 45 | Tucumán |
| RN38 | 75–288 | 213 | Tucumán, Catamarca, La Rioja |
| RN150 | 288–341 | 53 | La Rioja |
| RN76 | 341–413 | 72 | La Rioja |
| local roads | 413–416 | 3 | La Rioja |
- Mile 106 of this route: Tucumán → Catamarca (province line)
- Mile 194 of this route: Catamarca → La Rioja (province line)
Where to stop on the way to Villa Unión
- Right off the route (under 1 mile): El Chiflón (mile 332)
- Nature and outdoors: El Chiflón (mile 332), Talampaya National Park (mile 367)
- Museums and history: Basílica de San Francisco, Tucumán (mile 11), San Fernando del Valle de Catamarca Cathedral (mile 150), Archaeological Museum Adam Quiroga (mile 150), Museo Arqueológico Regional Inca Huasi (mile 244)
Basílica de San Francisco, Tucumán
Built in 1767 on the corner of San Martín and 25 de Mayo, off Plaza Independencia, the San Francisco church and convent in Tucumán's historic center housed the first Franciscan school.
San Fernando del Valle de Catamarca Cathedral
Dedicated to the Virgen del Valle, the Cathedral Basilica of Our Lady of the Valley stands in San Fernando del Valle de Catamarca.
Archaeological Museum Adam Quiroga
The Archaeological Museum Adam Quiroga (Museo Arqueológico Adán Quiroga) safeguards what is considered the most important collection of archaeological pieces in Catamarca province.
Museo Arqueológico Regional Inca Huasi
The Inca Huasi Regional Archaeological Museum, in the city of La Rioja, is devoted to the archaeology of northwestern Argentina.
El Chiflón
On National Route 150, about 70 km west of Patquía, El Chiflón Provincial Park belongs to the Talampaya–Ischigualasto geological basin and shares its landscape, geology and cultural features with those parks.
Talampaya National Park
Talampaya National Park in La Rioja Province became a provincial reserve in 1975, a national park in 1997 and a UNESCO World Heritage Site in 2000.
More drives to Villa Unión
- Capilla del Monte to Villa Unión
- Maipú to Villa Unión
- Córdoba, Argentina to Villa Unión
- Río Cuarto to Villa Unión
- Catamarca to Villa Unión
- San Miguel de Tucumán to Villa Unión
From Tafí Viejo to other places in Argentina
- Tafí Viejo to Amaicha del Valle
- Tafí Viejo to Santa María, Argentina
- Tafí Viejo to Cafayate
- Tafí Viejo to Capilla del Monte
- Tafí Viejo to Villa Carlos Paz
- Tafí Viejo to San Agustín de Valle Fértil
Frequently asked questions
How long does it take to drive from Tafí Viejo to Villa Unión?
About 8 h 15 min of driving without stops, over 416 miles.
What is the driving distance from Tafí Viejo to Villa Unión?
About 416 miles (669 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.
Is it safe to drive from Tafí Viejo to Villa Unión?
The U.S. State Department rates Argentina Level 1: Exercise Normal Precautions. Read the full advisory before you go.
What roads does the drive from Tafí Viejo to Villa Unión use?
In order: RN9, RN38, RN1V38, RN150 and RN76. The road-by-road table above shows the route miles for each one.
Where can you stop on the way from Tafí Viejo to Villa Unión?
Closest to the road: Basílica de San Francisco, Tucumán (basilica, mile 11, 2 mi from the route); San Fernando del Valle de Catamarca Cathedral (basilica, mile 150, 2 mi from the route); El Chiflón (park, mile 332, 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.