California Gold & Gems Maps Then and Now - Northern Edition Gold San Diego County's stunning

San Diego County's stunning

A Geologic Journey From California to the Rocky Mountains

Incorporating the latest scientific names from the 2011 edition of The Jepson Manual

National Geographic has been meeting their need for clear and accurate information for 25 years with our million-selling Field Guide to the Birds of North America

California Gold & Gems Maps Then and Now - Northern Edition Gold San Diego County's stunningCalifornia Gold & Gems Maps, Northern Edition is a comprehensive collection to assist the rockhound in locating 40 gem sites. The source of information has been taken from numberous publications. All known types of rock and gem deposits could not be included because of the numerous types and locations would be overwhelming. Some of the reported gold and gold districts are included as far back as 1850.