Fifteen years ago my brother in law drove heavy equipment and highway rigs out of Kamloops.
He heard stories on the road that rigs were being stolen by pot growers.
They were taking the rigs and trailers and burying them just so they could use the trailers for pot grow warehouses. That's Rigs AND Trailers.
They were making so much money on pot that it wasn't worth their while to fence the stolen rigs. That's $100,000 rigs buried in the ground just to grow pot!
A couple of years ago there was a bust in Barrie, Ontario, just north of Toronto. What had been a huge brewery operation was closed and sold. The growers moved in and were running a massive grow op. This was located right adjacent to the main 6 lane highway (HWY 400) running north out of Toronto. Thousands of cars passed every day.
Turns out there were a lot of guys with Italian names who owned the place. I don't know what finally happened.