It’s 275 miles from Tucson, Arizona to Las Cruces, New Mexico, as the crow flies, and it’s just about the same distance if you’re traveling by car. You get on I-10 and head east, and it’s a straight shot on an unbending road that takes you past long freight trains rattling west and dusty mountains framed by blue sky, bright sunshine, and high clouds.
And speaking of dust, the section of I-10 from Tucson to Las Cruces is one of the few places in America where you’ll see highway signs warning you of what to do if you’re caught in a dust storm. As I took in the brittle, dry look of the surrounding landscape, with only a few desert plants here and there and lots of exposed earth, it wasn’t hard to imagine a dust storm kicking up. Fortunately, we didn’t encounter any dust storms — the recent snow presumably tamped down the dust, and it wasn’t that windy, anyway — but I now know from seeing multiple signs that you’re supposed to pull to the side immediately, turn off all lights, set your emergency brake, take your foot off the brake, stay in the vehicle with your seatbelt buckled, and wait until the storm passes.
Shortly after you pass from Arizona to New Mexico you pass a notch in the southern border of the state that puts you within 40 miles or so of Mexico. If you look south from the roadway you see desolate countryside that probably hasn’t changed much in hundreds of years, more dusty looking mountains in the distance, and not much else. You do, however, have a great selection of Mexican AM radio stations to keep you company as you roll along.