Tony:
Yes I am working on a snow fighting book on the D&RGW and RGS. I am still researching, so it will be a wait before it is done. The research is very time consuming as a lot of it has to come from newspapers (a lot of D&RGW records were destroyed). I thought I was close to being done with the narrow gauge, when new info became available. Also, Jack Thode convinced me to do the D&RGW standard gauge before he died and that is turning out to be as much effort as the narrow gauge. I recently started researching snow operations on the D&RGW in Utah and was blown away with all the rotary plow ops out there. I think it will be worth the wait as I have tried to document every rotary and flanger operation that I can find.
One of the major discoveries was the extent of rotary operations on the D&RGW...far more than has been the general belief. I think I convinced Bob Richardson that there were many more than he thought and in places never suspected.