Excellent! Welcome to Trainboard! SD50's, are my guess--very nice rockwork! My layout is still the Plywood, Pink Foam and Pacific... Here's a coal load awaiting the passing of the California Zephyr, at Plain siding on the D&RGW Moffat Route:
Welcome to Trainboard!! Great photo of the Chessie power. I hope to have some as run-through on my ATSF Line.