We had a great morning at Fossil & Prairie. The prairie is just lovely - and large! Mowed trails are easy to follow. We appreciated that there weren't trail markers at every juncture - they're not necessary given the open view.
After hiking we walked over to find some fossils and came away with a small treasure store from the Devonian. Next time, I'd bring something to sit on since the fossils are easier to see if you can get your eyes nearer the ground.
We were too early to visit the Interpretive Center. But the bathrooms were clean and they had info packets outside the door (geared for kids).