I am surprised there is little flint by you. When I was in San Antonio, I always found LOTS of flint. Every time I walked down a stream or dried creek bed, I always found tons of large round flint rocks. Some times I tried to chip it and make something, but was never successful. I am guessing you are over by Dallas. I guess the rock structure is different there. San Antonio is mostly lime stone, mixed with lots of flint.
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