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Onyx Mountain Caverns


category : Natural Attractions
Beautiful Onyx formations, huge dripstone formations, guided tours, woodland Indian cultural information, underground river, gift shop and rock shop. On the National Register of Historic Places.


Admission: Adults, $7.75; Children 5-12, $3.75
Hours: Year round
Address: 14705 PD 8541
Phone: 573-762-3341
Handicapped Accessible.

Come visit us in St. Robert, Missouri

Attractions and Upcoming Events

Things to do Natural Attractions near St. Robert, MO

Ozark Caverns

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Miller Trail and Cave

Short but very steep trail. Wonderful valley view from the huge mouth of the cave. ADA ...

Onyx Mountain Caverns

Beautiful Onyx formations, huge dripstone formations, guided tours, woodland Indian cultural information, underground river...

Clifty Natural Bridge

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Jacob's Cave

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