Dean,
As I write this I'm in a condo at 9600ft in Siverthorne, CO. On my scale of 0-100, the haze is not more than 15. I have seen it slightly better, but not much. FYI, the color is less than a week from peak here.
I will say that we drove into CO from the east on I-70 4 days ago and the haze was so bad around Denver that you could not see the mountains (I have never seen it like that), but no problem int the high country.