This is snippet from UFO Files: UFO's of the 70's (was also shown in Mexico's Roswell episode)
This bit is about a UFO that was tracked over Texas, then veers over into Coyame, Mexico on August 25th, 1974.
Apparently it collided with a small plane and the UFO was later found crashed in the desert -- later the UFO was taken away by the US.
Known as "The Chihuahua UFO Crash”
A detailed report of this incident found here:
http://www.v-j-enterprises.com/crashmex.html
Another site with links, picture, and map of the area:
http://www.ghostleagues.com/ufo/
