.........uh, there are many cities right against the border in Texas. To name a few from memory are Brownsville, McAllen, Laraedo, Presidio, El Paso.
San Antonio is about 150 miles north of Brownsville.
,,,,,,,uh, I don’t live in TX and am not a geography expert. El Paso was the one I was thinking of now that you mention it though. I knew it was two words at least.