Hi Hart. The Google satelite views clearly show the "new" wye, which I agree with you was probably built when the line was standard gauged, since presumably any ng. turntable was too small and a wye was cheaper than installing a bigger turntable. However, those are guesses on my part, and the C&S historians may need to correct me.
Related to that, I wonder if the surviving C&S engine house, which in 1961 time provided a home for both the engine and the rotary, was a survivor from ng. times. Since it is fan shaped, it is easy to assume it built when there was a turntable. If there was a turntable.
Actually, the engine is not on the wye, but the lead from the enginehouse to the mainline, just south of the wye. It had already been turned when we got there.
Jerry Day seems to think the DRGW building served as both an enginehouse and a car shop. He is fairly knowledgeable. Clearly the building does appear to lack smoke jacks, but for the kind of occasional light repairs that might have been done at Leadville, maybe smoke jacks were not a big issue. Again, I will defer to the experts on that one.
Thanks to everyone for their input.
JBWX