Just a heads up, if you use the Roadtrippers link to navigate to this bridge, it will take you north out of Frankenmuth to a private drive. We ended up using Google Maps to get there.
Library and Museum are again open to the public! Our family visited on 6/19/2020.
Great stop for our family of four (kids age 12 and 10)! After visiting Scott's Bluff where all signs say you must stay on the path, this was a fun place to explore, climb, and experience the landscape. Expect about 12 miles on dirt/gravel road to reach your destination. It's free and there's nobody there; be sure to bring your own water. We spent about an hour and a half there. You can definitely spend more time there to explore more of the area. It was a family favorite!