Hi! I am in San Antonio. Not much to dig here, unfortunately, I have been looking. What kind of bottles do you collect? Best bet is to expand outwards and travel a ways from SA.
You would think there would be places since SA is a city with so much history. Im totally new to collecting but interested in Coca Cola or medicine bottles.
Both New Braunfels and San Antonio have a lot of soda water bottles out there, make sure you keep an eye out for them.
Also, the nearby town of 3 Rivers made an incredible amount of glass bottles used in a lot of southern states, look for them, they can be worth some serious money.
Good luck hunting!