Colorado

 is a location in the United States mentioned throughout the Fallout series.

Mentions

 * Caesar mentions that the Legion has expanded into several states, including much of Colorado.
 * Rex served with the police service in Colorado.
 * Ulysses mentions the state when describing Legate Lanius, in that he "put Colorado to the sword."
 * An ending slide describes the defeat of the White Legs in Colorado.
 * Colorado Springs, Colorado River, and Colorado Plateau are locations mentioned in Fallout: New Vegas and Fallout Tactics.