California was a Pre-H state of the United States, the most populous part of the country and home to several of its largest cities. It is located west of the Rocky Mountains and was devastated in the War of a Thousand Suns.

The Amtrak Federation has not yet expanded into the territory of California. Its more temperate climate and relative ease of living make it a near-mythical destination for renegades attempting to escape from the Federation, but those who survive the hazardous crossing of the Rockies find that the territory is settled by the Southern Mutes, and living peacefully there is not easy.

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