The Merolla pass divides the Berguedà and Ripollès regions, and also the Llobregat and Merdás river basins. From La Pobla de Lillet the pass is almost nine kilometers long, with …
This pass has its hardest slope from Guardiola de Berguerdà, with a length of almost eight kilometers and a second half in which there are many ramps above 10%, reaching in some cases 15%.