Hi,
I just received a copy of the Official Guide from 1969.
I thought it interesting that it showed the Antonito-Durango-Farmington line, the Monarch branch and the Marysvillee branch (all gone now).
It also shows the schedule for the California Zepher.
Also there is a small entry for Durango to Silverton with notes about summer service only, a second section, no checked baggage at either Durango or Silverton, and "coaches (all space reserved)"
Doug