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Chiricahua National Monument is a unit of the National Park Service located in the Chiricahua Mountains in southeast Arizona. It is famous for its extensive vertical rock formations. It was created on April 18, 1924. The national monument also preserves the Faraway Ranch, owned at one time by Swedish immigrants Neil and Emma Erickson.〔(【引用サイトリンク】publisher=National Park Service )〕 ==Geography== The monument is located approximately southeast of Willcox, Arizona. Geologists believe that it preserves the remains of an immense volcanic eruption that shook the region some 27 million years ago. The thick white-hot ash spewed forth from the nearby Turkey Creek Caldera, cooled and hardened into rhyolite tuff, laying down almost two thousand feet of dark volcanic ash and pumice, highly siliceous in nature, which eventually eroded into the natural features visible that we see at the monument today.〔(【引用サイトリンク】publisher=National Park Service )〕 In 2008, the Chiricahua National Monument Historic Designed Landscape, covering roughly 80% of the national monument, was listed on the National Register of Historic Places. Chiricahua stone columns.jpg|Stone columns, called hoodoos, are the most common formation in the monument Chiricahua nima6.JPG|Hoodoos Cupressus arizonica - Pinus johannis.jpg|Arizona Cypress and Johann's Pinyon Chiricahua Nima1.JPG|Trees and hoodoos Taghdeem be doostam Pastoral.JPG|Road scene 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chiricahua National Monument」の詳細全文を読む スポンサード リンク
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