This new activity is modeled loosely after the autumn cattle rush in Colorado "back in the day." it requires:
1. StL&NA Route
2. DLW NA Equipment Pack
3. Timetable 22 (above)
After unpacking, it should appear in your StLNA Activites as "Autumn Cattle Rush".
P.S. I thought of using the new CM Pack, but I didn't know who all had that. I'll let Uncle Herb make the conversion ...