aerial drone view of valverde del camino silillos reservoir and dam is located on the buitron river within the tinto, odiel and

aerial drone view valverde del camino silillos reservoir dam buitron river tinto odiel marsh spain plant energy andalusia huelva hydropower countryside turquoise blue water generator valley electric hydroelectric canyon panorama architecture landscape nature lake travel forest environment mountain outdoor sky europe outdoors engineering electricity landmark power tourism hydro hill tree beautiful stone located piedras hydrographic demarcation