New Mexico

New Mexico was a state of the United States of America in which could be found the town of Roswell. (PDA: The Devil Goblins from Neptune) Near Roswell lay Area 51, a top-secret American military base for the retention and study of aliens and their artefacts. The tenth Doctor visited the state in 1958, where he befriended a couple of New Mexicans, Cassie Rice and Jimmy Stalkingwolf, and dealt with a Viperox threat. (DW: Dreamland)