You don't have to go outside of Texas to enjoy bison and prairie dogs! My family had a wonderful morning of hiking & enjoying the beauty of this park. The park offers panoramic views of red hills, a variety of hiking trails, and great day of enjoying nature's wonders. We even "Grumpy", an older bison bull who blocked the roadway. (The friendly and informative park ranger told us his name.) The prairie dogs are shy if you get too close, but they are cute and chatty at a distance.
We have visited Palo Duro Canyon State Park numerous times, which is about an hour away, but thoroughly enjoyed our time at Caprock Canyons State Park. Be sure to visit BOTH parks. Your park admission fee will apply to both.