It's all free but if u like the experience u might b thoughtful enough to leavr a donation....atmosphere is quite and unassuming
Free and very nice. Maintained very well.
This is all free! There is an earth lodge, interpretive center and alot of information & displays. The Mandan, Hidatsa & Arikara tribes were a peaceful people who traded their agricultural resources all over the upper midwest. All at no cost! Enjoy!
It is free
No fee
It's all free and there is a lot to see.
There is no entry fee.
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