• America's First

    Devils Tower

    National Monument Wyoming

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  • Campground

    The Belle Fourche River Campground is open for the summer season!

Contact Us

By Mail
P.O. Box 10
Devils Tower, WY 82714-0010

- or -

For FedEx / UPS
Hwy 110 Bldg 170
Devils Tower, 82714

By Phone
Visitor Information
(307) 467-5283

By Fax

By Email
Click here to send an email message.

Did You Know?

Close up of phonolite

Devils Tower is made of phonolite porphyry. Phonolite refers to the ringing of the rock when a small slab is struck, and its ability to reflect sound. Porphyry refers to its texture, large crystals of feldspar embedded in a mass of smaller crystals.