This load of fresh slabs put off quite a bit of heat as it passed.

Ore loads from North Bessemer interchange head south on the N Bessemer Branch towards the US Steel Edgar Thomson Works at Braddock.

A diesel crane heads for North Bessemer past a nice forsythia bush.

Union Railroad RCL engine working the Valley Yard at USX ET Works.

Union Railroad RCL engine working the Valley Yard at USX ET Works.

Running on jointed rail, the Union's hot slab train works upgrade at Bull Run. Standing trackside, it's easy to feel the heat emanating from the freshly cast slabs.

The slab train's short journey is almost over, the Irvin Works are just ahead.

Five URR MP15DC's are pulling for all their worth to get a loaded coke train through Dravosburg.

Union #8 brings a cut of empty gons from the interchange yard at Riverton back to the pipe mill at McKeesport. This move is quite elusive.

One of eight SW1500s on the Union RR roster works the yard at the southeast end of the ET Works.

Four EMD switchers lug manifest freight north to North Bessemer Yard.

Light power turns on the wye at J interlocking.

Backing across the Monongahela, this URR coke train has just left the Duquesne Leg of the wye at J Interlocking, an extremely complex junction with tracks diverging in all directions.

A quintet of Union switchers back across the bridge over NS's Port Perry Branch. The coke that these engine are shoving is destined for the USX ET plant, located across the river in Braddock.