Garret Romaine 
Rocks, Gems, and Minerals of the Rocky Mountains 

Rocks, Gems, and Minerals of the Rocky Mountains is a field guide to more than 130 of themost common and sought-afterrocks, gems, and minerals hidden throughout the Rocky Mountains. Conveniently sized to fit in your pocket and featuring full-color, detailedphotographs, this informativeguide makesit easy to identifyrocks in your backyard and beyond. Also included isan introduction that covers fundamental geology information and interesting facts.This is the essential source when you’re out in the field, both informative and beautiful to peruse.