Did you know that caves have tunnels carved by wind and water? Mammoth Cave in Kentucky has more than 400 miles (644 kilometers) of tunnels. Discover more intriguing facts in Caves, an Exploring Ecosystems book.
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Did you know that caves have tunnels carved by wind and water? Mammoth Cave in Kentucky has more than 400 miles (644 kilometers) of tunnels. Discover more intriguing facts in Caves, an Exploring Ecosystems book.
Read Less
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Very good. The pages show normal wear and tear. The cover has visible markings and wear. This is a hardcover copy Fast Shipping-Each order powers our free bookstore in Chicago and sending books to Africa!