Where's The Road In "Them!"?

Above, pointing out where the shocked little girl and her parents' trailer were found in Them!

Just like the 1930s and 1940s are generally considered the "classic era" for horror movies, the 1950s is considered by many to the the "classic era" for science-fiction movies.

Last night, I watched one such classic from the 1950s: Them! (1954), with James Whitmore and James Arness.

The story:

While investigating a series of mysterious deaths, Sergeant Ben Peterson (James Whitmore) finds a young girl (Sandy Descher) who is unable to speak. As Peterson joins forces with FBI agent Robert Graham (James Arness) and scientist Dr. Harold Medford (Edmund Gwenn), he discovers that all the incidents are due to giant ants that have been mutated by atomic radiation. Peterson and Graham, with the aid of the military, attempt to find the queen ants and destroy the nests before the danger spreads.

The atomic radiation that mutated the ants originated from the 1945 atomic bomb test (the "Trinity" test) in nearby White Sands, New Mexico.

Above, the location of Gramps Johnson's store.

During the movie, a map of the vicinity of Alamogordo in Otero County was shown where the little girl was found wandering in the desert and where Gramps Johnson was found dead in his store basement.

Above, a real map of the Valmont, New Mexico vicinity. There's no such road from it.

This got my curiosity going. I checked Google Maps, Mapquest and others to see if this was an actual road in New Mexico southwest of Alamogordo originating from Valmont. Well, Valmont is a real place, but none of the maps showed the road depicted in the movie. It was either fictional or the road was removed to protect the public. I go with fictional

I guess fans of Them! can't go on that road to see the "locations" (I suspect the scenes were actually filmed in the Mojave Desert of California).