Confluence of the Pisuerga and the Burejo Nature · Herrera de Pisuerga, La Ojeda, Palencia Image of Herrera de Pisuerga, not of the place itself. The town sits at 844 metres above sea level just where the river Burejo delivers its waters to the Pisuerga; the meeting of both channels with the Canal de Castilla creates a mosaic of riverbanks in the middle of the moorland. Photo: Valdavia (CC BY-SA 3.0) What to see and do in Herrera de Pisuerga