Grand Canyon or the Great Gorge is a canyon cliff-steep, carved by the Colorado River, in northern Arizona. This canyon is one of the Seven Wonders of the World and mostly located in the Grand Canyon National Park; one of the first national parks in the United States. President Theodore Roosevelt is one of the main supporters of the Grand Canyon area, visiting on numerous occasions to hunt mountain lion and enjoy the incredible natural scenery.
The canyon, created by the Colorado River cutting a channel over millions of years, the length of approximately 446 km, with a width ranging from 6 to 29 km and a depth of more than 1,600 m. Nearly 2000 million years of Earth history have been cut by the Colorado River and its tributaries layer after layer of sediment as the Colorado Plateau began to rise.
Grand Canyon was first seen by Europeans in 1540, García López de Cárdenas from Spain. The first scientific expedition to the canyon was led by U.S. Major John Wesley Powell in the late 1870s. Powell pointed to the sedimentary rocks exposed in the canyon as "leaves in a great story book". However, long before that time, the region has been inhabited by Native Americans who built the residence in the canyon walls.
The canyon, created by the Colorado River cutting a channel over millions of years, the length of approximately 446 km, with a width ranging from 6 to 29 km and a depth of more than 1,600 m. Nearly 2000 million years of Earth history have been cut by the Colorado River and its tributaries layer after layer of sediment as the Colorado Plateau began to rise.
Grand Canyon was first seen by Europeans in 1540, García López de Cárdenas from Spain. The first scientific expedition to the canyon was led by U.S. Major John Wesley Powell in the late 1870s. Powell pointed to the sedimentary rocks exposed in the canyon as "leaves in a great story book". However, long before that time, the region has been inhabited by Native Americans who built the residence in the canyon walls.
Grand Canyon atau Ngarai Besar adalah sebuah ngarai tebing-terjal, diukir oleh Sungai Colorado, di utara Arizona. Ngarai ini merupakan satu dari Tujuh Keajaiban Dunia dan sebagian besar berada di Taman Nasional Grand Canyon; salah satu taman nasional pertama di Amerika Serikat. Presiden Theodore Roosevelt merupakan salah satu pendukung utama wilayah Grand Canyon, mengunjunginya dalam beberapa kesempatan untuk berburu singa gunung dan menikmati pemandangan alam yang luar biasa.
Ngarai ini, diciptakan oleh Sungai Colorado memotong sebuah selat selama jutaan tahun, panjangnya kira-kira 446 km, dengan lebar mulai dari 6 sampai 29 km dan dengan kedalaman lebih dari 1.600 m. Hampir dari 2000 juta tahun sejarah Bumi telah terpotong oleh Sungai Colorado dan anak sungainya lapis demi lapis sedimen ketika Dataran Tinggi Colorado mulai terangkat.
Grand Canyon pertama kali dilihat oleh orang Eropa pada 1540, García López de Cárdenas dari Spanyol. Ekspedisi saintifik pertama ke canyon ini dipimpin oleh Mayor AS John Wesley Powell pada akhir 1870-an. Powell menunjuk ke batuan sedimen yang terbuka di ngarai sebagai "daun dalam buku cerita agung". Namun, jauh sebelum masa itu, wilayah ini telah ditinggali oleh Penduduk Asli Amerika yang membangun tempat tinggal di tembok ngarai ini.
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