Flour for bread making can be found at any supermarket these days.
Many companies make it -
Gold Medal Better for Bread
King Arthur
Robin Hood
Pillsbury
It says "bread flour" on the label or "Specifically for Bread" or
something like that. Very easy to find.
Also, King Arthur sells an organic bread flour too, in smaller sacks.
King Arthur can be expensive but it is worth it.
For even better flour, look for Wheat Montana brand. I think there
are a few other specialty grain companies that make it too - Bob's
Red Mill I think does too. If they can't be found in Carlsbad, I am
sure they can be found online.
Good luck,
RisaG