Joint Line covers the trackage between Denver and Pueblo, Colorado.  The line is jointly owned and operated by the D&RGW and the AT&SF, as a result of USRA oversight in World War I.  Joint Line was previously known as the Denver Division.  Note that timetable #1 is titled as the Denver Division.  I include it here as well since it is the start of a new numbering scheme, as well as a new timetable size.