Separated from his science team on a mountain after a landslide, Joe is in no hurry to get back. The slide has carried a wealth of fossils with it for him to study! Joe examines these and the mountain terrain to learn how the mountains formed and figure out how old they are.

Trapped on the Rock 2014, Crabtree Publishing Company

ISBN-13: 9780778704393

Trade paperback

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Trapped on the Rock 2014, Crabtree Publishing Company

ISBN-13: 9780778704331

Hardcover

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