All things considered from the past 3-5 years in this state [Colorado], I don't think that the state government would even consider letting a coal burner back on the Loop. After the drought and associated fire season of 2002, and even the fire danger encountered last summer and currently around the state, I don't think the state would ever allow ANOTHER coal-fired railroad. I am not saying that coal-firing is bad, or that it is historic or non-historic, I am only stating that it is highly unlikely that a conversion to coal on the Loop would EVER happen. At least not in our lifetimes.
And could you imagine the screams of bloody murder up and down the streets of Silver Plume if the already "dirty, smokey, noisy, vibration-making-so-as-to-disturb-a-one-hundred-year-old-beaver-pond" train was to be converted to coal???!!!
The residents above the Plume yard would have black clothes on their clothes lines, black houses, black cars, etc. They would also have pitchfork and shotgun in hand while talking to Loop management about the now "unacceptably dirty old train".
But then again, interesting idea...
Shane