There's huge logging slash piles in eastern Washington. I have asked myself just how many bears get burned up during the winter when those piles get torched
Back in the early 2000's ,I burned a lot of slash piles. I remember a unit up by the ski hill 49 .
They wasn't happy,when the wind blown all that smoke that way.
I always was waiting for a bear to pop out,never happened,not to say that there wasn't a bear in there. Depending on how much snow was on the ground,some piles would light fast,others you be standing there for an hour or more , climbing inside . We used drip torches, propane torch.
Depending on the day , could use gallons of fuel.
Now days they might have one pile at the landing. They really don't burn all that much anymore.
Burn permits, pollution, all that ,they just don't burn as much these days. Back in the day ,it was in the logging contract to pile as much slash as they could. Now it's run it over,toss in the bush,spread it out.