I guess it was 2005 when I recall the Tioga not being opened till the first week of July. We got out there at the end of June and had to wait till just before the 4th to drive to the eastside.
In 2005, it opened on June 24. When I was there in 1998, it didn't open until July 1, which put a crimp in our travel plans that year, as I recall.
CaT