Great shot Darren! That looks like it is somewhere in Ohio on Conrail's former Chicago Line. Ex-New York Central Signal bridge?
O Shay can you see, by the 'fan's camera light.......ES&NA Shay on the turntable (which is from the Frisco yard in Ft. SMith) at Eureka Springs, AR, June 1987, at the Frisco Modelers Information Group annual meeting. Shot this with a Canon AE-1 on a tripod, can't remember the exposure time, but was using available light.