GP7 SLSF 600 GP7 SLSF 600 leads 3 sisters at the head of a train. Second unit is either SLSF 505 or SLSF 605 but the first number is blocked in the number boards and I cannot read the side of the cab. Location Unknown, but possibly somewhere in Kansas. Photographer unknown. Slide is dated October 1968. Edit: Steve Beaty has identified this location as 2-miles east of Beaumont, KS. RRT Edit 2/28/2024: Beaumont, KS, MP458.5 , is on the Wichita Subdivision. Train is climbing the hills through a moderate depth cut westbound toward Beaumont. Beaumont was a junction with the Beaumont Subdivision. It extended to the southwest to Enid, OK. MKD