Here you see a huge fire in the yard near me.
As best as I can tell, without going there for a visit, I believe the yard is some kind of topsoil recycling place.
They seem to feed soil through a large drum shaped sieve, separating the rubbish from the soil.
I suppose they had not disposed of their rubbish in a while..
It took the fire brigade about three hours, or so, to finally put it out.