PRR:
I have the books just needed a hint in which of fifty books to look in. I have the Trails along the Columbine book for 1987 and see what you are refering to, I don't know however where the 1883 map or diagram is. I found the one in the Preservation book by Spencer Wilson and it has an 1991 diagram that shows a coal dock next to the last stall of the engine house assuming the right stall is the last. I suspect that before 1900 either it didn't make any difference how long you held up a train to coal it or they always switched engines with the crews on all trains out of Chama and coaled them overnight or between runs on different trains. The coal wharf on the engin house lead seems strange because to unload the coal car would tie up the lead for several hours to unload it by hand.
Frank