GP38-2 679 and GP-38 636 by Frisco.org Posted on March 12, 2014 GP38-2 679 and GP-38 636 GP38-2 679 and GP-38 636 at Mountainburg, Arkansas in April 1976 (Mike Condren). Posted in RT Collection | Tagged 636, 679, Electro-Motive Division, GP-38, GP38-2 | Leave a comment