Leza River is a tributary of the Ebro that flows along the Camero Viejo, at La Rioja Media.
The river flowe in an impressive canyon which forms landscapes of a great beauty. The Leza river flows into the Ebro at Agoncillo. Following the river upstream you will find villages such as Murillo de Río Leza, Ribafrecha, Leza del Río Leza, Soto en Cameros or Laguna de Cameros.After Villamediana the road joins the valley of the Leza at Ribafrecha and begins to become steep as the canyon narrows . Some stretches of the old road can be used as sidetracks to stop to have a look at the canyon and take some pictures.