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Mac's Pocket Guide: Grand Canyon National Park, Geology (Mac's Pocket Guides)
Mac's Pocket Guide Grand Canyon National Park Geology - Mac's Pocket Guides Author:Stewart Aitchison MAC?S POCKET GUIDE: GRAND CANYON NATIONAL PARK, Geology, Photographs by Stewart Aitchison. Perfect for the budding geologist, this guide has everything you need to know about the Grand Canyon?s unique natural formations?rocks, minerals, geological history, and more?so that you?ll be able to ?read? the rock up close while on the trail. ISBN 1-594... more »85-019-4.« less