Jerry, and others,
the lower D
X is in the Crossing Loop at Raurimu (Uptrain, Northbound), the town and Station is below the Raurimu Spiral, and is like Jim Pallow's photo showing a train in the Los Pinos siding. I.E. You couldn't take such at Maysville with the loops above since the Siding is a way's East of the looped track location. Shirley maybe.
Real railroading situations of opposing trains on single track.
Not Photo Oportunities, phraudographs nor publicity shots such as the Woodstock DS~P&P photo either. No siding at this immediate location.
[
digital.denverlibrary.org]
Was it possible to get same at Ophir? Probably yes. Illium would be another.
Nick,
Chattanooga didn't have a passing track.