Poster Project

Poster Project - The Grand Canyon, located in Arizona, is...

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The Grand Canyon, located in Arizona, is one of the national park system's most famous parks. Grand Canyon National Park features a mile deep canyon engraved into the Colorado Plateau by the Colorado River. Recent evidence suggests the Colorado River established its course through the canyon at least 17 million years ago. The Colorado River has spent some 10 million years cutting this trench, although by 1.2 million years ago the river had cut within about 50 feet of the canyon's present depth. The river runs 277 miles through the park and drops 2,215 feet. The Grand Canyon is 277 miles long and can reach up to 18 miles wide. The Grand Canyon is the most extraordinary act of erosion in geological history. The deep hollow reveals 2 billion years of the earth's history through horizontal bands of sedimentary rock. Some rocks near the bottom of the canyon are 2 billion years old, half the age of the earth. The walls of the canyon as well as spires and other formations often have a characteristic stair step pattern. This is formed as a result of the varying hardness of the rocks layers and the longer period that the upper layers have been exposed, weathered, and eroded. A developed area experienced by most visitors to the Grand Canyon on the south rim is Grand Canyon Village. This area contains spectacular views of the canyon, trails which descend all the way to the Colorado River or run along the edge of the south rim. There is a
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This note was uploaded on 05/09/2011 for the course LA 1203 taught by Professor Fryling during the Spring '08 term at LSU.

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Poster Project - The Grand Canyon, located in Arizona, is...

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