For what it's worth, the 1923 textbook
Logging, by Prof. Ralph C. Bryant of the Yale University School of Forestry, gives the standard rail length of that era as 30 feet.
(It's a fascinating book if you can locate a copy, and worth buying just for the chapter on railroad construction. There is even a discussion of the relative merits of geared versus rod locomotives, as well as different fuel types and spark arrestors, not to mention sections on skylines and log loaders, log chutes and flumes, and even river drives and the construction of log rafts.)
-Philip Marshall
Edited 1 time(s). Last edit at 11/01/2017 09:32PM by philip.marshall.