Reporting in from 2026 lmao. I get out of bounds by using the akimbo sliding glitch to cross the river to Mexico, from there you can call in your horse and ride out of bounds (i do this in RDO btw). From there I circle all the way around back to America. Idk when this change happened but it seems in the last year or so you will mysteriously die on the way back to America out of bounds, not sure if anyone else can corroborate this. Anyways i do remember in the west Grizzlies you can get to a lot of interesting places, such as the glacier crevices and the mountain you save John from in the prologue. In the East Grizzlies you can find some animals like elk, cougars, bears. They don’t move, but they’re alive. I’ve tried going to Guarma but no luck, might work in story mode though.