More good news from Yellowstone yesterday.  The campground we have reserved for the first three nights there will be reopening next week.  So no serious worries about our main reservations then.  And I read in a separate news article this morning that parts of northern half of the Park might reopen in early July.  So though we won't be able to do all the things we had planned, as the days go by it appears that more and more of what we'd planned will work out.