The valley of the Valderaduey river Nature · Villazanzo de Valderaduey, Sahagún, León Image of Villazanzo de Valderaduey, not of the place itself. The Valderaduey orders the whole municipality, which spreads nine villages along its banks and its moors; the municipal district extends over almost a hundred and forty-six square kilometres with barely two and a half inhabitants per kilometre. Photo: Jesusrevillaromero (CC BY-SA 3.0) What to see and do in Villazanzo de Valderaduey