Re: "Trinidad" Coal on the C&S

In about 1985, I had an opportunity to interview the last two surviving enginemen from the C&S Narrow Gauge. They were Clinton Eshe, and Doug Schnarbush. Eshe was promoted to Engineer just prior to abandonment in 1937.
Both commented on how awful the coal was that came up from Trinidad. Eshe said it "Clinkered if you looked at it wrong". Every once in a while, they'd get some carloads of Trinidad coal on the C&S Narrow Gauge and it was always a problem.
They usually got their coal from somewhere on the Western Slope. Eshe said it came from "up near Oak", but I never knew what he meant by that, and he must have thought I was an idiot, because I asked him about where that was at least three times, and he always just said "up near Oak".
I was reminded of this reading your post, and looked up my old notes.