美国旅行必去十五个国家公园之“大峡谷国家公园”(7)

世界遗产委员会评价：著名的科罗拉多大峡谷深约1500米，由科罗拉多河长年侵蚀而成，是世界上最为壮观的峡谷之一。大峡谷位于亚利桑那州境内，横亘了整个大峡谷国家公园。大峡谷的水平层次结构展示了20亿年来地球的地质学变迁，同时它也保留了大量人类适应当时恶劣环境的遗迹。
Carved out by the Colorado River, the Grand Canyon (nearly 1,500 m deep) is the most spectacular gorge in the world. Located in the state of Arizona, it cuts across the Grand Canyon National Park. Its horizontal strata retrace the geological history of the past 2 billion years. There are also prehistoric traces of human adaptation to a particularly harsh environment.