Sorry about the shameless plug, but I thought I would let forum members know that I am listing on Ebay some more out-of-print Colorado narrow gauge books from the estate of a friend's parents. Most are older long out-of-print Colorado Railroad Museum publications such as a copy of "Logging Along the Rio Grande" and older Rail Annuals. It may be a chance to fill some of the holes in your collection cheaply! When you go to the link, there are other items listed, so scroll down to see the books. Thanks. Here is the link: