I agree with the need for a better defined route. And to have such information made available to the public as far a head of time as possible.
Hopefully the tour will reach San Francisco. Although that is still quite a distance from Mount Shasta. But.... I would imagine make for a very nice mini road trip. For one could stay in the City for two or more days, go to the beach and or Fisherman's Wharf, China Town, walk along the Embarcadero, amongst many other activities.