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Devils Tower National Monument
Operating Hours & Seasons

VISITOR CENTER

Devils Tower National Monument is open 24 hours a day, 7 days a week. The visitor center is open April 9 through November 30, 2008, then closes for the season. Information can be obtained at the administration building during the winter.

April visitor center hours are 9:00 a.m. - 5:00 p.m., Wednesdays through Sundays.

On May 1, the visitor center is open seven days a week, 9:00 a.m. – 5:00 p.m. Beginning May 24 the visitor center is open every day from 8:00 a.m. - 7:00 p.m.

On September 1, hours change to 9:00 a.m. - 5:00 p.m.

Beginning October 1, the visitor center will be closed on Mondays and Tuesdays.  The visitor center will close for the season on Monday, November 30, 2008.

CAMPGROUND

The campground and picnic area are open April 25 through October 27, weather permitting. 

Close up of phonolite  

Did You Know?
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.

Last Updated: February 11, 2008 at 10:54 EST