Keywords: Pahkakoski power plant Oulu 20130526 03.JPG en Pahkakoski hydroelectric power plant fi Pahkakosken vesivoimala 2013-05-26 09 53 51 own Estormiz cc-zero 2013 in Oulu May 2013 in Finland Pahkakoski power plant Taken with Canon EOS 600D Uploaded with UploadWizard |