GP7s 590, 581, and 582 by Frisco.org Posted on November 23, 2015 GP7s 590, 581, and 582 GP7s 590, 581, and 582 with Train #331 at Cherryvale, Kansas on April 28, 1978. This entry was posted in RT Collection and tagged 581, 582, 590, Electro-Motive Division, GP7. Bookmark the permalink.