3 years ago
JamesBurns
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The Grand Canyon's Colorado River
The Grand Canyon is part of the Colorado River basin which has developed over the past 40 million years. A recent study places the origins of the canyon beginning about 17M years ago. Previous estimates had placed the age of the canyon at 5–6 million years. You can see here how the Colorado river has ground it's way through to form one of the wonders of the world.
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