A new visitors center makes this a great place for a day trip with kids. Hands-on exhibits bring to life the amazing fossils buried here, including those of a rhinocerous-like creature called a brontothere. Summer offers ranger-guided interpretive walks of the massive petrified redwood tree stumps and small carbon impression fossils of plants and insects. And park fees are waived on 11 days in 2013.
— Chosen by Bill Vogrin