You got it! Lol I don't expect to be hailed as a genius for this, but B.C. was my first guess. Never been.
There are PLENTY of places to have fun like that even here just in my state. Hell, I'm 40 minutes from the Smokey Mountains. There's a 100,000 acre off road park right down the interstate not far out of town.
The problem, for lack of a better word, is the outdoorsy areas generally speaking aren't wide open like that, where you were, in this part of the country. Trees everywhere around here, which equals "I need to watch my paint" and "I can't go nearly as fast as I'd like." I've never been to the PNW or Canada, definitely on our list.