Nice picture but it was driving me nuts. I remembered the spot but not its location. I've found it though. It is where the Camino Frances crosses the Rio Porma to enter Puente Villarente. That is 6 km west of Mansilla de las Mulas and 12 km east of Leon. The map at the link below shows the location but not the new pedestrian bridge. That bridge can be seen though with a little playing around with Google's Street View.