There's a lot actually. It's all short climbs or bouldering but there is plenty. Lake mineral wells state park is an hour west and is usually open for top roping. There are boulders along the Nolan river about an hour south of downtown. These places are on MP and the web in general There is more stuff but you have to look along the rivers and valleys.
There's a lot of easy climbs and a whole bunch of really hard climbs out there.