Cheyenne

Cheyenne is the capital city of Free Wyoming and was also the capital city of Wyoming prior to the Great War.

Pre-war
Before the Great War, Cheyenne was the capital of the state of Wyoming, the 44th state in the United States of America. It was also one of the smallest state capitals in the country.

Vault 45 was initiated under project safehouse in 2064 and was completed in 2071. Almost immediately, the spots for the vault were taken and this was due to an extensive advertising campaign and lower than average prices for the vault. Secretly, Vault 45 was going to be used as an experiment to see how American citizens would react to knowing of the experiments going on in the other vaults around the United States.

Great War
During the Great War, Cheyenne, like most of Wyoming was spared from the horrors of nuclear war. Apart from a few detonations in the surrounding farmland, the town remained mostly unaffected.