Calculate route from San Miguel (Coahuila, Mexico) to Piedras Negras (Coahuila, Mexico).
The flight distance (as the crow flies) between San Miguel and Piedras Negras is 387.3 km.
Roadmap (route) to go from San Miguel to Piedras Negras detailed above, you can also see the course layout on the map.
While doing trip San Miguel - Piedras Negras by car, the calculated route ends at a distance , or more straight.