I spent the afternoon in Nuevo Progreso, Mexico today, just over the border from Mercedes, TX. I went with Joseph D and Gene H. We walked over. Got a nice $5 haircut too. Below are some pics from the trip.
Here I am on the center of the bridge. The border is the center of the sign.
Here is the sign at the entrance to Nuevo Progreso, Mexico
The Mexican Army was present in this border town.