I hope this works.
A map is of the park is here: You can zoom in with your browser.
http://kerrville.org/DocumentCenter/View/23415This is a link to the pictures.
http://www.bikepics.com/members/youzguyz/p5/Pictures are in the order of High Point, Midway, Riverside
When you click on a picture, there is a description at the bottom of the page. I.E. Photo Info: high point mini cabins
If you click the photo again, you get a HUGE picture.
General observations.
Riverside mini cabins:
Combo firepit/grill. Restroom isn't too far. Easy access to highway. River access.
Midway/Group area min cabins
Firepit and grill. Restroom very close (for cabin 17). Highway is not close
High Point mini cabins
Combo firepit/grill. Restroom.. not close. Highway is not close
Restrooms are pretty much the same in each area. 2 showers.
Water spigots close to each mini-cabin.
Anything else I can answer while I can remember?