In 1906, what became the first U.S. national monument?
Devils Tower
Fort Sumter
Grand Canyon
Joshua Tree
Devils Tower, located in northeastern Wyoming, holds the distinction of being the first national monument in the United States. It was designated by President Theodore Roosevelt on September 24, 1906, under the newly enacted Antiquities Act. Rising dramatically 867 feet from its base, the tower is a striking geologic feature, formed by an igneous intrusion and characterized by its unique hexagonal columns. The 1977 movie Close Encounters of the Third Kind used the formation as a plot element and as the location of its climactic scenes.
Correct Answer: Devils Tower