I accidentally stumbled across these pages tonight. Sometimes google takes you to the wrong place, and you are fortunate to find something interesting!

http://www.foresthistory.org/ASPNET/Publ...ntents.htm
http://www.foresthistory.org/ASPNET/Publ...ntents.htm

There is also some general logging railroad information there that applies to almost any logging railroad in North America.

There are some good reference photos there ! Thanks!