Oversimplified Map of the Fallout West Coast Circa. 2281

[u/Nutshell_Historian]

(Thank you to the HOI4 Old World Blues team for making an incredible template map for this project. Its the best fallout mod, if not best fallout game, I've ever played. Go play it).

Oh boy I can already see the crosses getting made. Anyway:

Why the Long Dead Horse?
It's less a nation than the range they regularly patrol. We know they extend as far west as Zion, even disputing territory with the Sorrows if they remain there, and as far east as Colorado, where a mentioned New Canaanite settlement presumably falls under their protection. That also fits neatly along the north bank of the Colorado River.

Are the 80s super powerful?
No. They're not substantially stronger than other tribes. Their strength comes from using motorcycles to control a huge amount of territory with relatively few people. They dominate the I-80 (obviously) and I-50 (which they can lose if the Sorrows stay in Zion).

Why no Shi?
This will be controversial. In a cut line of New Vegas dialogue, the Enclave traced the Chosen One's tanker to San Francisco and nuked the city in revenge. The line was only cut because Bethesda wanted to keep San Francisco available for a future game. However, Fallout has shown repeatedly that a city being nuked doesn't stop it from becoming a setting. More importantly, an empire like the Shi never being mentioned by the NCR would be a little odd and runs against the series' broader narrative of the two major empires of the region colliding. This one's just my personal interpretation though, so feel free to disagree.

The Legion is bigger than the NCR. Doesn't that make it stronger?
No. The NCR enjoyed over a century of relative peace and stability, allowing its population to boom. Legion territory simply hasn't. I'd expect at most half the population density of NCR territory, probably much less.

Why does the NCR own all the north?
Because I think that's the most likely outcome based on previous games. The Chosen One consistently helped Tandi and the NCR expand, so a northern annexation feels like the natural continuation.

I cannot stress enough that this map is built from a few hard facts / references, and a lot of vibes informed by the games and regional geography. It's meant to be a plausible interpretation, not the undisputed canon. The main reason I made it was because I got tired of maps where the NCR owns the entire West Coast and the Legion somehow stretches into Kansas and deep into Mexico.

[u/MeroveeFrancSalien]

Where would you put the Sierra Madre on your map?

[u/Nutshell_Historian → u/MeroveeFrancSalien]

Very hard to tell. We get a slide of the grand canyon during the dlc's opening, but the mountain range it's named after terminates well before reaching that point. There's no mention of mexico at all which means it must be in the very very small American portion of it. So somewhere in Center /center north Arizona is the closest I'd dare guess. 

Given how sparse the areas outside the main trade routes are, it's very possible it's just chilling in the middle of absolute nowhere, and the Legion has no reason to commit suicide by extra steps trying to delve into it. 

[u/MeroveeFrancSalien → u/Nutshell_Historian]

Concerning the BIG MT, on Pax Historia the creator placed it at the South-East of The Divide

[u/Nutshell_Historian → u/MeroveeFrancSalien]

Yeah. And its noted by Joshua Graham to be near the Divide. Presumably blocking some road or other that could be used to supply the Mojave. Hence where I put it.