Sierra Vista is located just a few miles to north of Mexico. If you’re driving up to Benson or Tucson, you can expect to be stopped by the border police. Please have your papers ready for inspection.
Most days, a tethered unmanned blimp hovers over the mountains to the south of Sierra Vista. On some nights, you can see the light of a drone traversing the air above the border.
Sierra Vista is also home to an army base, hence the occasional helicopters and aircraft.
Tomorrow we leave for San Diego, right next to the border with Tijuana.