Midwest

A home of radioactive cyclones.

Midwest refers to the former north-central states of the United States of America, specifically Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Ohio, Nebraska, North Dakota, South Dakota and Wisconsin (the Plains Commonwealth and Midwest Commonwealth).

A little is known about this area:
 * Cassidy floats: I hear they got twisters miles wide in the Midwest. It's a big ol' radioactive dustbowl now.
 * Caesar's Legion pack encountered in Denver travells to the east (Kansas direction), where its new headquarter is located. The Legion pack appears there once a year. Then every couple of weeks a pair of fast guys scout out east, if the radioactive dust storms have subsided for the season. Once they do, they'll head out. Once the Legion pack is discovered in Denver, every month that passes has a 25% chance, that Legion slavers left to go back to Caesar taking all their slaves with them.
 * Anton, the leader of the non-NCR salvagers in Denver, is from the Midwest and fled to Denver to escape Caesar's Legion. So it could be possible to live there.