The massive front overhang and the PTO levers on the cab floor indicate this might have had some sort of crane on it at some time in it's post-war life.
Wow, you're certainly enjoying the luxuries; concrete-floored sheds and all!
There's certainly a lot of smoke being produced up that way, and much of it in out of the way areas that used to have sawmills and independent-minded farmers that kept old Blitzes running for many years. Dreadful stuff, and I hope too much is not lost. Curiously, when the areas were being logged for timber, or pillaged for firewood, the fuel load on the ground was usually managed and maintained and fire management was an active part of living and working in the areas. Since the areas have been "preserved" as National Parks, the manpower to manage fire risks has reduced to the point where they are vast tracts of land waiting for dry weather and a strong wind to go whoosh.
Many of these "Unique Ecologies" will take a decade or more to recover, if ever, and the communities in the area have been devastated.
You're probably just best for now to stay north of the border (stay safe!), and tell us where these trucks are popping up.