description Devil's Tower Overview
Devils Tower is an igneous rock formation in northeastern Wyoming, within Devils Tower National Monument in the Bear Lodge Mountains. Its tall, near-vertical columns formed through cooling and jointing of magma, producing the distinctive polygonal structure used to identify it. President Theodore Roosevelt established the site as the first United States national monument in 1906 under the Antiquities Act. It is visited for geology, landscape viewing, cultural history, and climbing.
help Devil's Tower FAQ
Where is Devils Tower?
Devils Tower is an igneous rock formation in northeastern Wyoming, United States. It is protected as Devils Tower National Monument and rises above the surrounding landscape as a prominent columnar formation. [National Park Service](https://www.nps.gov/deto/faqs.htm?level=1)
Why is Devils Tower historically important?
President Theodore Roosevelt proclaimed it the first United States national monument in 1906 under the Antiquities Act. The designation made the site a landmark in the history of federal protection for natural and cultural places.
Why is the official name Devils Tower without an apostrophe?
The US Board on Geographic Names generally avoids apostrophes in official geographic names, so the National Park Service uses Devils Tower. The possessive spelling Devil's Tower still appears in older writing and popular usage.
Was Devils Tower featured in Close Encounters of the Third Kind?
Yes. The formation became globally recognizable after appearing as the destination at the center of Steven Spielberg's 1977 film Close Encounters of the Third Kind. The movie increased public interest in the Wyoming monument.
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