This was taken back in 2006 at the ex Frisco yard in BHAM, AL. Check out that SD-9 at the loco servicing facility
Check out those GP-7's , they were remote controlled yard engines, plus the hand brakes were the automatic type ( you just push a button and the hand brake ties up on its own, unlike the conventional kind which require being hand cranked). Its neat to see a class one with old power in great shape.