We visited Custer State Park a few years ago and saw a variety of wildlife and hoped to repeat it this year. We were disappointed, maybe it was the weather, but we didn't see as many (yes, I know they are wild and not always close to the road). Most of the animals we saw were far off the road. We did see one antelope laying down close to the road. Even though we were disappointed we didn't see much wildlife, the scenery didn't disappoint. The views are amazing no matter where you are. Definitely recommend a drive on the loop road.