Res

Res is the name given by Joshua Graham to a location somewhere east of the Grand Canyon.

Background
Graham believes the Dead Horses to have developed their language from a combination of Res and the languages of tourists vacationing in Utah and Arizona at the time of the Great War.

Appearances
Res is only mentioned in the Fallout: New Vegas add-on Honest Hearts.

Behind the scenes
The Res is a term often used in reservation states to refer to any Indian Reservation.