Leaving Sahagún, cross the Río Cea. About 4.4 km from town, near a large highway interchange before Calzada de Coto, the route splits into two options.
The Camino Real (straight ahead) follows the traditional route through Bercianos del Real Camino and El Burgo Ranero. It runs along a senda — a paved pilgrim path — that parallels the road. The walking is flat and direct, with services at regular intervals.
The Vía Trajana (right turn) takes a more rural path through Calzada de Coto and Calzadilla de los Hermanillos, following the line of an old Roman road. It's quieter, with fewer services but more solitude. Both routes converge before Mansilla de las Mulas.
The Camino Real is more popular and better serviced. The Vía Trajana appeals to those who've had enough of walking near roads. Either way, the meseta continues flat and open.