Over 730,000 people visit Colorado National Monument each year. It was established in 1911 under the Antiquities Act. Gordon Leggett, CC BY-SA America’s public lands, from its majestic national parks ...
The Gateway Arch in St. Louis — America’s smallest national park and tallest human-built monument — turns 60 on Oct. 28. The Gateway Arch is 75 feet taller than the Washington Monument and over twice ...
The Antiquities Act of 1906 gave Congress or the president the authority to establish national monuments on federal land as a means of protecting areas for ecological, cultural, historical, or ...
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