No, you don't. I don't think you do in any Texas State Park.
A fishing license is not required in any Texas State park.
No
Nope
All is taken care of when you pay to get in. That's your fishing license in a sense. That way in all Texas State Parks.
As long as the body of water lies entirely inside a state park you do not need a license I suggest reading a handbook. It might save you some $ in fines.
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