Keywords: Oahe Powerhouse.jpg en wikipedia 2009 June 24 Oahe Powerhouse near Pierre South Dakota showing surge chambers and part of tailrace looking to north-west Transferred from http //en wikipedia org en wikipedia; transferred to Commons by User Vux using http //tools wikimedia de/~magnus/commonshelper php CommonsHelper <br/> Original text I created this work entirely by myself 2008 August 31<br/> 2008 10 01 original upload date Wtshymanski talk Original uploader was Wtshymanski at http //en wikipedia org en wikipedia Released into the public domain by the author en wikipedia Wtshymanski Original upload log page en wikipedia Oahe_Powerhouse jpg 2008-10-01 00 27 Wtshymanski 2506×1344× 295984 bytes <nowiki> Oahe Powerhouse near Pierre South Dakota showing surge chambers looking to north-east I created this work entirely by myself 2008 August 31 ~~~ </nowiki> Lake Oahe Dams in South Dakota Hughes County South Dakota Missouri River Stanley County South Dakota Hydroelectric power plants in South Dakota |