The smoke plume was about 30,000 feet high and maybe 70 miles long.
That afternoon, I found ash from the fire dropped on my property.
I figure they're probably building materials but it's impossible to tell.
One thing I've noticed that I never have before (doesn't mean it wasn't the case -- I just never noticed) is the language that journalists use to talk about the fire seems to be drawn from how they would talk about fighting a dragon. The fire "lays down". The fire fighters "knock down" the flames. Obviously, the fire "roars". I guess it makes sense: what else incarnates a fire better than a dragon?