The Grand Canyon, located in the state of Arizona, is a steep-sided canyon carved by the Colorado River. The canyon is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The Grand Canyon is known for its visually overwhelming size and its intricate and colorful landscape. Geologically, it is significant because of the thick sequence of ancient rocks that are beautifully preserved and exposed in the walls of the canyon. These rock layers record much of the early geologic history of the North American continent.
The Grand Canyon is a natural formation distinguished by layered bands of red rock, revealing millions of years of geological history in its walls. The canyon was developed over a period of 6 million years. The Colorado River, along with its tributaries, carved the Grand Canyon into its current form. It has been eroding at a rate of about 0.1 inches per year for the last million years. The River's steep course and high rate of flow are primarily responsible for the deep and wide nature of the Canyon.
The Grand Canyon has significant cultural and religious significance for many Native American tribes. For the Hopi, Navajo, Zuni, Havasupai, Hualapai, Paiute and other tribes of the Southwest, the Grand Canyon is a sacred place and significant in their mythologies and cosmologies. Many tribes consider the Grand Canyon as their place of origin. Indigenous people have been living in and around the canyon for thousands of years, leaving behind artefacts, structures, and culturally significant sites.
The Grand Canyon continues to inspire awe and wonder in millions of visitors each year. It is a symbol of natural beauty and the power of erosion. It is a place of adventure and exploration, with countless hiking trails, river rafting opportunities, and breathtaking viewpoints. The Grand Canyon is a UNESCO World Heritage site and is considered one of the Seven Natural Wonders of the World.
The Grand Canyon is home to over 1,000 species of plants, 447 species of birds, 91 species of mammals, 48 species of reptiles, and 18 species of fish. The Canyon's geological layers represent about two billion years of Earth’s history, which is nearly half of the age of the Earth. Despite its depth, the Grand Canyon is not the world’s deepest canyon. Both the Kali Gandaki Gorge in Nepal and the Hells Canyon in Idaho are deeper.