Good stuff! I've looked at Caprock Canyon on maps (and the TX parks website), but haven't been there yet. It's so close, too. I definitely need to get over there. I'm less than a year from retiring, and it's nice to keep adding to "The List"!
I found them because I travel to the Midwest for family visits and it make a good first night stop. I stopped there once before and explored, briefly, the area around the front campground, hook-ups & RV's, the furthest camp area is the place to go.