Interesting facts about the Grand Canyon are that its oldest rocks date back two billion years, it represents one-third of Earth's history and it's not the biggest canyon in the world. The Grand Canyon ranges in age from 250 million years old at the highest rocks to two billion years old at the lowest rocks.Know More
Grand Canyon Explorer explains that scientists distinguish more than 30 percent of the history of the Earth in the rock of the Grand Canyon, from the oldest metamorphic and volcanic stone deposited in the Proterozoic Era to the youngest sedimentary rocks deposited during the early Mesozoic Era. These layers of stone read like a map of the Cambrian, Devonian, Mississippian, Pennsylvanian and Permian periods. This canyon was created through the gradual process of erosion, volcanic activity and ancient waterways.
Despite its popularity, the Grand Canyon is not the largest canyon on Earth. With an average depth of 5,280 feet and length of 277 smiles, it comes in a distant second to the Yarlung Tsangpo Grand Canyon in the Himalays, which boasts a depth of 17,567 feet and a length of 308 miles. However, it still takes tourists from one two three weeks to travel the length of the Grand Canyon via the Colorado River.Learn more about Landforms
The Grand Canyon is situated within the state of Arizona. It is approximately 280 miles long, spans up to 18 miles in width and reaches a maximum depth over 6,000 feet. The canyon comprises a portion of the Colorado River basin, which has formed over the past 40 million years.Full Answer >
The Grand Canyon is likely between 5 and 6 million years old, according to most geologists and scientists. However, some theorize that the Colorado River began forming the Canyon nearly 17 million years ago. The Canyon continues to form, due to the ongoing erosion that the Colorado River causes.Full Answer >
The Colorado River is the major body of water that flows through the Grand Canyon. Two dams affect the flow of the river through the canyon: the Hoover Dam at the lower end of the canyon and the Glen Canyon Dam at the upper end, according to Arizona State University.Full Answer >
The Grand Canyon walkway is a glass and steel extension that hovers over the rim of the Grand Canyon. The horseshoe-shaped structure has a glass floor and extends 70 feet from the edge of the canyon wall. It hovers 4,000 feet over the Colorado River.Full Answer >