Southern Cresent limited on the Saluda grade. 

Southern PS-4 1396 and 1394 Pull the crescent limited Through the Saluda Grade (8/12/41)
The map is from The Switchback (i cant use links).
The rear PS-4 is from K&L Trainz including the coaches (Payware).
The front PS-4 is from the Huntington Shops.