GP7s 586 and 585 by Frisco.org Posted on May 20, 2014 GP7s 586 and 585 GP7s 586 and 585 at the Fort Smith (Arkansas) engine terminal on August 25, 1962 (Al Chione). This entry was posted in GS Collection and tagged 585, 586, Electro-Motive Division, GP7. Bookmark the permalink.