Fossil Butte was an excellent stop!
They have a really cool drive/walk through timeline of the geological history of the Earth outside. On the inside, they had some interesting fossils on displayed.
The ranger was doing a live-feed "field trip" with a classroom which was really cool because we were able to listen in on additional information about the exhibits.
We took the scenic drive and drove up to enjoy the incredible views.
We would definitely recommend this as a quick stop if you're into geology and fossils.