Arizona's 20 national parks and monuments celebrate the natural wonders and rich heritage of Arizona, preserved through the efforts of countless citizens and the American Antiquities Act of 1906. Aggressively implemented by eight US presidents, this legislation permits the president to unilaterally proclaim sites as national monuments without congressional action. The Antiquities Act was applied in Arizona 23 times, more so than any other state in the union. Using more than 200 historical photographs, many of which have never been published, this book contains the stories of the creation of each of Arizona's national parks and monuments, emphasizing the importance of the landscape and cultural heritage to Arizona's identity.