GP35s 711, 715, and U25B 820 by Frisco.org Posted on October 24, 2013 GP35s 711, 715 and U25B 820 GP35s 711, 715 and U25B 820 somewhere (apparently) in Kansas in May 1980. The fourth unit is unidentified. This entry was posted in Slides and tagged 711, 715, 820, Electro-Motive Division, General Electric, GP35, U25B. Bookmark the permalink.