Roswell is in southeast NM on the western edge of the 'staked plains' region of Texas. The part of NM they are discussing is about 250 miles away in the mountains of northern New Mexico.
UFO Navigation in & around NM is very tricky, due to the secret Ancient installations in Vitorio Peak...or at least was, until the government discovered them & shipped them to Area 51, before sanitizing the site.
Doc Noss (nor Chief Victorio) didn't even scratch the surface of what was there.
The Watcher still watches.