Devils Tower Becomes First American National Monument
On September 24, 1906, President Theodore Roosevelt took a historic step in the protection of America’s natural and cultural treasures when he proclaimed Devils Tower in northeastern Wyoming as the first United States National Monument. This designation, made under the brand-new Antiquities Act of 1906, marked the beginning of a tradition of preserving special landscapes for future generations — a legacy that continues today in more than a hundred national monuments across the country.