Thanks for the reply.
The more you look, the less obvious the answer is.I have the "1990 Trails Among the Columbine" book on Marshall Pass, and it has become my bible on recreating it in model form. There was a pole yard track show in the corrected drawing as #21, and 328' long that shows in the 1947 RMR picture. The last eastbound stock movement May 2, 1955 shows the grassed over grade on the long straight east of the water tank. I can find no picture of the siding with rails extending beyond the tank site. The tank was gone by 1947. This includes a search of the Otto Perry site at the Denver Public Library, the various video's I have. Walter Bornemman's book on the Marshall Pass only has a map showing track 21 without any crude change. Does anyone know the history of this and when the tank was removed?
Bob Meckley