Remnants of Ancient Life : The New Science of Old Fossils
Dale E. Greenwalt
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Discover Nature in the Rocks : Things to Know and Things to Do
Susan Panttaja
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What Your Fossils Can Tell You : Vertebrate Morphology, Pathology, and Cultural Modification
Robert W. Sinibaldi
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Southwest Treasure Hunter's Gem and Mineral Guide (5th ed.) : Where and How to Dig, Pan and Mine Your Own Gems and Minerals
Kathy J. Rygle
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From Crust to Core : A Chronicle of Deep Carbon Science
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From Crust to Core : A Chronicle of Deep Carbon Science
Simon Mitton
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Extinctions : Living and Dying in the Margin of Error
Michael Hannah
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Extinctions : Living and Dying in the Margin of Error
Michael Hannah
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Rockhounding New York : A Guide to the State's Best Rockhounding Sites
Robert Beard
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Rockhounding Utah : A Guide to the State's Best Rockhounding Sites
William A. Kappele
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Rockhounding Montana : A Guide to 100 of Montana's Best Rockhounding Sites
Montana Hodges
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Gold Panning the Pacific Northwest : A Guide to the Area's Best Sites for Gold
Garret Romaine
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Rockhounding Delaware, Maryland, and the Washington, DC Metro Area : A Guide to the Areas' Best Rockhounding Sites
Robert Beard
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Rock Art : The Meanings and Myths Behind Ancient Ruins in the Southwest and Beyond
Stewart M. Green
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Rockhounding Colorado : A Guide to the State's Best Rockhounding Sites
William A. Kappele
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Gold Panning California : A Guide to the Area's Best Sites for Gold
Garret Romaine
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Rockhounding Washington : A Guide to the State's Best Sites
Lars W. Johnson
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