Okay, this is going to sound silly, but I'm really struggling to come up with any other answer apart from the geography/shape of Mt.Chiliad has been modified since Doomsday was released. Stay with me here.
So I'm a keen off-roader and hillclimber, and I have a favourite route up the Paleto Bay-side of Chiliad that I like to use. It's a steep, completely offroad route that is just about doable without sliding back down. Now, this route begins in a 'valley' of sorts that is accessible by crossing the farmland near the Clucking Bell farm. Theres a silo right next to it - a notable landmark I always use to find the start of the route. Now, halfway up the mountainside, there's a slight levelling where it was possible to get a runup at the next, steeper part that would lead to the very top of the mountain. A pitstop of sorts. But since Doomsday, I cannot for the life of me find this area and it's driving me crazy. I've flown all across Chiliad in a Deluxo looking for it and it just seems to have disappeared. Also, I'm pretty sure there's some trees and rocks which have appeared on a much steeper landscape than I remember.
It's driving me crazy, because I can't figure out whether I'm just wrong, blind or both. If they did modify this part of Chiliad, why? It's not close to the missile silo hatch, as that's on the complete opposite side of the mountain. If they didn't change it, why am I suddenly unable to find this route I've been using for the past year, and know like the back of my hand?
Any answers would be nice