After doing a quick search on Google, I saw there are lots of CG within about 35 miles of Hickory. But, most reviews were negative on the ones within about 20 miles, save for one.
Indian Springs has good reviews. From GoogleEarth, there is very little shade. But, it may suit your needs, since you are there for another reason, and not the campground itself.
Interesting area! Lots of water (don't have much of that in Colorado), so take your insect repellant.
If it were me, this is the campground I would chose in that area, for that purpose.