Thank you. It extends further north than I had envisioned, but as an overall placement of force it is concentrated in the southwestern region, and it is the southwest border I had in mind.
I find it odd how it is concentrated along certain routes too. Other than San Antonio, most of the cities are not huge ones. My city is about 70 thousand and the one that really boggles me is Goliad!
Goliad has two historic Missions and is a very tiny town, surrounded by large empty countryside.
San Antonio is huge and highly populated. It’s puzzling.