as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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provide 3 fun facts about the grand canyon.
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1. the grand canyon is the second largest canyon in the world. 
2. the grand canyon is 277 miles long, up to 18 miles wide, and a mile deep. 
3. almost two billion years of earth's geological history can be seen in the rocks found in the walls of the grand canyon.
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