Please supply months that one can travel sun road. Like to travel fall months while fall colors are present. Is this possible or is spring a better time to visit n travel the road?

Depending on the winter they have in the park, the snow may not be clear until the end of June. July through October would be best.

You know the National Park Services has a website that answers all the common questions about specific parks.....like when they are open🙄

From what I've been reading July and August or about your best bets, Of course if it was me I would call the Rangers