ZAC 155: Driving the High-Altitude Road to Vetagrande in Zacatecas
The ZAC 155 is a high-altitude paved road located north of Zacatecas City in central Mexico. Connecting the urban center with the mining township of Vetagrande, the route traverses a rugged semi-desert mountainous terrain, reaching a maximum elevation of 2,680m (8,792ft) above sea level.
| Road facts: ZAC 155 (Vetagrande Road) | |
|---|---|
| Location | Zacatecas, Mexico |
| Max Elevation | 2,680 m (8,792 ft) |
| Min Elevation | 2,300 m (7,545 ft) |
| Surface | Paved / Variable condition |
| Road Designation | State Road ZAC 155 |
How is the road to Vetagrande?
The road, officially designated as ZAC 155 and also known as the Paseo de la Bufa, is fully paved but presents significant technical challenges. Starting from the lower valleys near Guadalupe or Calera at 2,300m, the road climbs steadily toward Cerro de la Bufa. The route is characterized by its integration with colonial mining infrastructure, passing through narrow sections and historical sites. The pavement condition varies, with several segments toward the Vetagrande township showing signs of wear and lack of regular maintenance.
What are the driving hazards on the ZAC 155?
Navigating the ZAC 155 requires caution due to poor signaling and a lack of safety barriers in critical high-altitude sections. The road features several close curves that demand low-speed transit, especially near the 2,680m apex. The absence of proper shoulder protection toward Vetagrande makes driving hazardous during low visibility or adverse weather. Drivers must also be alert for local traffic and industrial vehicles related to the regional mining activities that still dominate the landscape.
What infrastructure is located along the ZAC 155?
The road serves as a vital corridor between the Cerro de la Bufa and the Cerro del Grillo. Notable technical infrastructures along the way include a cableway system and telecommunications towers situated at the higher ridges. The route passes close to several colonial churches and an observatory, as well as a tourist mine accessible from the road. The high-altitude environment means that vehicle cooling systems are under constant pressure due to the sustained inclines and the reduced oxygen density at nearly 2,700 meters.
Is the road to Vetagrande safe for night driving?
Driving the ZAC 155 after dusk is not recommended for those unfamiliar with the terrain. The combination of steep gradients, sharp turns, and insufficient lighting increases the risk of accidents. Additionally, the lack of modern safety protections in the most elevated segments between Zacatecas and Vetagrande makes any error in judgment potentially critical. It is essential to check tire pressure and braking efficiency before starting the 380-meter vertical ascent from the city valley to the mountain pass.
Road suggested by: Eblem Torres