I loved this movie. Orson Wells was a true genuis! It is very impressive that 1958 Venice California was made to look like an entirely believable nasty border town.
I thought the locations were on a border somewhere near El Paso, until I spotted the Joshua Trees! Joshuas are only found in the Mojave Desert! Then I noticed the bridge and did a location check.
In the hands of a genuis, no need for budget busting remote locations!