Yep, took a look at both parks about 5-6 years ago. Have not camped there only because we haven't returned to the area. Both parks are nice with the South Sulphur Unit having the strong edge. Large park with good facilities. Reminded me a great deal of Isle du Bois on Ray Roberts. We were there in the spring time and the wildflowers were outstanding. Many interesting birds to watch as well.
I remember Doctors Creek Unit as being smaller with much less shade. Nothing wrong with the park but I believe I would choose South Sulpher. I seem to recall the Doctors Branch Unit was "on the chopping block" as one of the parks that the TPWD was thinking about selling. Guess it hasn't happened yet.
http://www.tpwd.state.tx.us/spdest/f...s/cooper_lake/
Hope this helps and happy camping!
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